81163440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:404

約数の個数: 240

約数和(自身を含む): 304668000

約数和(自身を除く): 223504560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 48, 51, 57, 60, 68, 72, 76, 80, 85, 90, 95, 102, 114, 120, 136, 144, 152, 153, 170, 171, 180, 190, 204, 228, 240, 255, 272, 285, 304, 306, 323, 340, 342, 349, 360, 380, 408, 456, 510, 570, 612, 646, 680, 684, 698, 720, 760, 765, 816, 855, 912, 969, 1020, 1047, 1140, 1224, 1292, 1360, 1368, 1396, 1520, 1530, 1615, 1710, 1745, 1938, 2040, 2094, 2280, 2448, 2584, 2736, 2792, 2907, 3060, 3141, 3230, 3420, 3490, 3876, 4080, 4188, 4560, 4845, 5168, 5235, 5584, 5814, 5933, 6120, 6282, 6460, 6631, 6840, 6980, 7752, 8376, 9690, 10470, 11628, 11866, 12240, 12564, 12920, 13262, 13680, 13960, 14535, 15504, 15705, 16752, 17799, 19380, 19893, 20940, 23256, 23732, 25128, 25840, 26524, 27920, 29070, 29665, 31410, 33155, 35598, 38760, 39786, 41880, 46512, 47464, 50256, 53048, 53397, 58140, 59330, 59679, 62820, 66310, 71196, 77520, 79572, 83760, 88995, 94928, 99465, 106096, 106794, 112727, 116280, 118660, 119358, 125640, 132620, 142392, 159144, 177990, 198930, 213588, 225454, 232560, 237320, 238716, 251280, 265240, 266985, 284784, 298395, 318288, 338181, 355980, 397860, 427176, 450908, 474640, 477432, 530480, 533970, 563635, 596790, 676362, 711960, 795720, 854352, 901816, 954864, 1014543, 1067940, 1127270, 1193580, 1352724, 1423920, 1591440, 1690905, 1803632, 2029086, 2135880, 2254540, 2387160, 2705448, 3381810, 4058172, 4271760, 4509080, 4774320, 5072715, 5410896, 6763620, 8116344, 9018160, 10145430, 13527240, 16232688, 20290860, 27054480, 40581720, 81163440]

約数ペア:

[(1, 81163440), (2, 40581720), (3, 27054480), (4, 20290860), (5, 16232688), (6, 13527240), (8, 10145430), (9, 9018160), (10, 8116344), (12, 6763620), (15, 5410896), (16, 5072715), (17, 4774320), (18, 4509080), (19, 4271760), (20, 4058172), (24, 3381810), (30, 2705448), (34, 2387160), (36, 2254540), (38, 2135880), (40, 2029086), (45, 1803632), (48, 1690905), (51, 1591440), (57, 1423920), (60, 1352724), (68, 1193580), (72, 1127270), (76, 1067940), (80, 1014543), (85, 954864), (90, 901816), (95, 854352), (102, 795720), (114, 711960), (120, 676362), (136, 596790), (144, 563635), (152, 533970), (153, 530480), (170, 477432), (171, 474640), (180, 450908), (190, 427176), (204, 397860), (228, 355980), (240, 338181), (255, 318288), (272, 298395), (285, 284784), (304, 266985), (306, 265240), (323, 251280), (340, 238716), (342, 237320), (349, 232560), (360, 225454), (380, 213588), (408, 198930), (456, 177990), (510, 159144), (570, 142392), (612, 132620), (646, 125640), (680, 119358), (684, 118660), (698, 116280), (720, 112727), (760, 106794), (765, 106096), (816, 99465), (855, 94928), (912, 88995), (969, 83760), (1020, 79572), (1047, 77520), (1140, 71196), (1224, 66310), (1292, 62820), (1360, 59679), (1368, 59330), (1396, 58140), (1520, 53397), (1530, 53048), (1615, 50256), (1710, 47464), (1745, 46512), (1938, 41880), (2040, 39786), (2094, 38760), (2280, 35598), (2448, 33155), (2584, 31410), (2736, 29665), (2792, 29070), (2907, 27920), (3060, 26524), (3141, 25840), (3230, 25128), (3420, 23732), (3490, 23256), (3876, 20940), (4080, 19893), (4188, 19380), (4560, 17799), (4845, 16752), (5168, 15705), (5235, 15504), (5584, 14535), (5814, 13960), (5933, 13680), (6120, 13262), (6282, 12920), (6460, 12564), (6631, 12240), (6840, 11866), (6980, 11628), (7752, 10470), (8376, 9690)]