20185428240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{2957}}^1$

素因数の和:3494

約数の個数: 240

約数和(自身を含む): 71524440000

約数和(自身を除く): 51339011760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 499, 570, 684, 720, 760, 855, 912, 998, 1140, 1368, 1497, 1520, 1710, 1996, 2280, 2495, 2736, 2957, 2994, 3420, 3992, 4491, 4560, 4990, 5914, 5988, 6840, 7485, 7984, 8871, 8982, 9481, 9980, 11828, 11976, 13680, 14785, 14970, 17742, 17964, 18962, 19960, 22455, 23656, 23952, 26613, 28443, 29570, 29940, 35484, 35928, 37924, 39920, 44355, 44910, 47312, 47405, 53226, 56183, 56886, 59140, 59880, 70968, 71856, 75848, 85329, 88710, 89820, 94810, 106452, 112366, 113772, 118280, 119760, 133065, 141936, 142215, 151696, 168549, 170658, 177420, 179640, 189620, 212904, 224732, 227544, 236560, 266130, 280915, 284430, 337098, 341316, 354840, 359280, 379240, 425808, 426645, 449464, 455088, 505647, 532260, 561830, 568860, 674196, 682632, 709680, 758480, 842745, 853290, 898928, 1011294, 1064520, 1123660, 1137720, 1348392, 1365264, 1475543, 1685490, 1706580, 2022588, 2129040, 2247320, 2275440, 2528235, 2696784, 2951086, 3370980, 3413160, 4045176, 4426629, 4494640, 5056470, 5902172, 6741960, 6826320, 7377715, 8090352, 8853258, 10112940, 11804344, 13279887, 13483920, 14755430, 17706516, 20225880, 22133145, 23608688, 26559774, 28035317, 29510860, 35413032, 40451760, 44266290, 53119548, 56070634, 59021720, 66399435, 70826064, 84105951, 88532580, 106239096, 112141268, 118043440, 132798870, 140176585, 168211902, 177065160, 212478192, 224282536, 252317853, 265597740, 280353170, 336423804, 354130320, 420529755, 448565072, 504635706, 531195480, 560706340, 672847608, 841059510, 1009271412, 1062390960, 1121412680, 1261589265, 1345695216, 1682119020, 2018542824, 2242825360, 2523178530, 3364238040, 4037085648, 5046357060, 6728476080, 10092714120, 20185428240]

約数ペア:

[(1, 20185428240), (2, 10092714120), (3, 6728476080), (4, 5046357060), (5, 4037085648), (6, 3364238040), (8, 2523178530), (9, 2242825360), (10, 2018542824), (12, 1682119020), (15, 1345695216), (16, 1261589265), (18, 1121412680), (19, 1062390960), (20, 1009271412), (24, 841059510), (30, 672847608), (36, 560706340), (38, 531195480), (40, 504635706), (45, 448565072), (48, 420529755), (57, 354130320), (60, 336423804), (72, 280353170), (76, 265597740), (80, 252317853), (90, 224282536), (95, 212478192), (114, 177065160), (120, 168211902), (144, 140176585), (152, 132798870), (171, 118043440), (180, 112141268), (190, 106239096), (228, 88532580), (240, 84105951), (285, 70826064), (304, 66399435), (342, 59021720), (360, 56070634), (380, 53119548), (456, 44266290), (499, 40451760), (570, 35413032), (684, 29510860), (720, 28035317), (760, 26559774), (855, 23608688), (912, 22133145), (998, 20225880), (1140, 17706516), (1368, 14755430), (1497, 13483920), (1520, 13279887), (1710, 11804344), (1996, 10112940), (2280, 8853258), (2495, 8090352), (2736, 7377715), (2957, 6826320), (2994, 6741960), (3420, 5902172), (3992, 5056470), (4491, 4494640), (4560, 4426629), (4990, 4045176), (5914, 3413160), (5988, 3370980), (6840, 2951086), (7485, 2696784), (7984, 2528235), (8871, 2275440), (8982, 2247320), (9481, 2129040), (9980, 2022588), (11828, 1706580), (11976, 1685490), (13680, 1475543), (14785, 1365264), (14970, 1348392), (17742, 1137720), (17964, 1123660), (18962, 1064520), (19960, 1011294), (22455, 898928), (23656, 853290), (23952, 842745), (26613, 758480), (28443, 709680), (29570, 682632), (29940, 674196), (35484, 568860), (35928, 561830), (37924, 532260), (39920, 505647), (44355, 455088), (44910, 449464), (47312, 426645), (47405, 425808), (53226, 379240), (56183, 359280), (56886, 354840), (59140, 341316), (59880, 337098), (70968, 284430), (71856, 280915), (75848, 266130), (85329, 236560), (88710, 227544), (89820, 224732), (94810, 212904), (106452, 189620), (112366, 179640), (113772, 177420), (118280, 170658), (119760, 168549), (133065, 151696), (141936, 142215)]