21409156680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2473}}^1\times {\mathrm{3797}}^1$

素因数の和:6303

約数の個数: 128

約数和(自身を含む): 67653014400

約数和(自身を除く): 46243857720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 2473, 3797, 4946, 7419, 7594, 9892, 11391, 12365, 14838, 15188, 18985, 19784, 22782, 24730, 29676, 30376, 37095, 37970, 45564, 46987, 49460, 56955, 59352, 72143, 74190, 75940, 91128, 93974, 98920, 113910, 140961, 144286, 148380, 151880, 187948, 216429, 227820, 234935, 281922, 288572, 296760, 360715, 375896, 432858, 455640, 469870, 563844, 577144, 704805, 721430, 865716, 939740, 1082145, 1127688, 1409610, 1442860, 1731432, 1879480, 2164290, 2819220, 2885720, 4328580, 5638440, 8657160, 9389981, 18779962, 28169943, 37559924, 46949905, 56339886, 75119848, 93899810, 112679772, 140849715, 178409639, 187799620, 225359544, 281699430, 356819278, 375599240, 535228917, 563398860, 713638556, 892048195, 1070457834, 1126797720, 1427277112, 1784096390, 2140915668, 2676144585, 3568192780, 4281831336, 5352289170, 7136385560, 10704578340, 21409156680]

約数ペア:

[(1, 21409156680), (2, 10704578340), (3, 7136385560), (4, 5352289170), (5, 4281831336), (6, 3568192780), (8, 2676144585), (10, 2140915668), (12, 1784096390), (15, 1427277112), (19, 1126797720), (20, 1070457834), (24, 892048195), (30, 713638556), (38, 563398860), (40, 535228917), (57, 375599240), (60, 356819278), (76, 281699430), (95, 225359544), (114, 187799620), (120, 178409639), (152, 140849715), (190, 112679772), (228, 93899810), (285, 75119848), (380, 56339886), (456, 46949905), (570, 37559924), (760, 28169943), (1140, 18779962), (2280, 9389981), (2473, 8657160), (3797, 5638440), (4946, 4328580), (7419, 2885720), (7594, 2819220), (9892, 2164290), (11391, 1879480), (12365, 1731432), (14838, 1442860), (15188, 1409610), (18985, 1127688), (19784, 1082145), (22782, 939740), (24730, 865716), (29676, 721430), (30376, 704805), (37095, 577144), (37970, 563844), (45564, 469870), (46987, 455640), (49460, 432858), (56955, 375896), (59352, 360715), (72143, 296760), (74190, 288572), (75940, 281922), (91128, 234935), (93974, 227820), (98920, 216429), (113910, 187948), (140961, 151880), (144286, 148380)]