21948935840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{4079}}^1$

素因数の和:4319

約数の個数: 144

約数和(自身を含む): 56445984000

約数和(自身を除く): 34497048160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 199, 208, 260, 338, 398, 416, 520, 676, 796, 845, 995, 1040, 1352, 1592, 1690, 1990, 2080, 2587, 2704, 3184, 3380, 3980, 4079, 5174, 5408, 6368, 6760, 7960, 8158, 10348, 12935, 13520, 15920, 16316, 20395, 20696, 25870, 27040, 31840, 32632, 33631, 40790, 41392, 51740, 53027, 65264, 67262, 81580, 82784, 103480, 106054, 130528, 134524, 163160, 168155, 206960, 212108, 265135, 269048, 326320, 336310, 413920, 424216, 530270, 538096, 652640, 672620, 689351, 811721, 848432, 1060540, 1076192, 1345240, 1378702, 1623442, 1696864, 2121080, 2690480, 2757404, 3246884, 3446755, 4058605, 4242160, 5380960, 5514808, 6493768, 6893510, 8117210, 8484320, 10552373, 11029616, 12987536, 13787020, 16234420, 21104746, 22059232, 25975072, 27574040, 32468840, 42209492, 52761865, 55148080, 64937680, 84418984, 105523730, 110296160, 129875360, 137180849, 168837968, 211047460, 274361698, 337675936, 422094920, 548723396, 685904245, 844189840, 1097446792, 1371808490, 1688379680, 2194893584, 2743616980, 4389787168, 5487233960, 10974467920, 21948935840]

約数ペア:

[(1, 21948935840), (2, 10974467920), (4, 5487233960), (5, 4389787168), (8, 2743616980), (10, 2194893584), (13, 1688379680), (16, 1371808490), (20, 1097446792), (26, 844189840), (32, 685904245), (40, 548723396), (52, 422094920), (65, 337675936), (80, 274361698), (104, 211047460), (130, 168837968), (160, 137180849), (169, 129875360), (199, 110296160), (208, 105523730), (260, 84418984), (338, 64937680), (398, 55148080), (416, 52761865), (520, 42209492), (676, 32468840), (796, 27574040), (845, 25975072), (995, 22059232), (1040, 21104746), (1352, 16234420), (1592, 13787020), (1690, 12987536), (1990, 11029616), (2080, 10552373), (2587, 8484320), (2704, 8117210), (3184, 6893510), (3380, 6493768), (3980, 5514808), (4079, 5380960), (5174, 4242160), (5408, 4058605), (6368, 3446755), (6760, 3246884), (7960, 2757404), (8158, 2690480), (10348, 2121080), (12935, 1696864), (13520, 1623442), (15920, 1378702), (16316, 1345240), (20395, 1076192), (20696, 1060540), (25870, 848432), (27040, 811721), (31840, 689351), (32632, 672620), (33631, 652640), (40790, 538096), (41392, 530270), (51740, 424216), (53027, 413920), (65264, 336310), (67262, 326320), (81580, 269048), (82784, 265135), (103480, 212108), (106054, 206960), (130528, 168155), (134524, 163160)]