81945480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:443

約数の個数: 128

約数和(自身を含む): 261734400

約数和(自身を除く): 179788920

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, 127, 152, 190, 228, 254, 283, 285, 380, 381, 456, 508, 566, 570, 635, 760, 762, 849, 1016, 1132, 1140, 1270, 1415, 1524, 1698, 1905, 2264, 2280, 2413, 2540, 2830, 3048, 3396, 3810, 4245, 4826, 5080, 5377, 5660, 6792, 7239, 7620, 8490, 9652, 10754, 11320, 12065, 14478, 15240, 16131, 16980, 19304, 21508, 24130, 26885, 28956, 32262, 33960, 35941, 36195, 43016, 48260, 53770, 57912, 64524, 71882, 72390, 80655, 96520, 107540, 107823, 129048, 143764, 144780, 161310, 179705, 215080, 215646, 287528, 289560, 322620, 359410, 431292, 539115, 645240, 682879, 718820, 862584, 1078230, 1365758, 1437640, 2048637, 2156460, 2731516, 3414395, 4097274, 4312920, 5463032, 6828790, 8194548, 10243185, 13657580, 16389096, 20486370, 27315160, 40972740, 81945480]

約数ペア:

[(1, 81945480), (2, 40972740), (3, 27315160), (4, 20486370), (5, 16389096), (6, 13657580), (8, 10243185), (10, 8194548), (12, 6828790), (15, 5463032), (19, 4312920), (20, 4097274), (24, 3414395), (30, 2731516), (38, 2156460), (40, 2048637), (57, 1437640), (60, 1365758), (76, 1078230), (95, 862584), (114, 718820), (120, 682879), (127, 645240), (152, 539115), (190, 431292), (228, 359410), (254, 322620), (283, 289560), (285, 287528), (380, 215646), (381, 215080), (456, 179705), (508, 161310), (566, 144780), (570, 143764), (635, 129048), (760, 107823), (762, 107540), (849, 96520), (1016, 80655), (1132, 72390), (1140, 71882), (1270, 64524), (1415, 57912), (1524, 53770), (1698, 48260), (1905, 43016), (2264, 36195), (2280, 35941), (2413, 33960), (2540, 32262), (2830, 28956), (3048, 26885), (3396, 24130), (3810, 21508), (4245, 19304), (4826, 16980), (5080, 16131), (5377, 15240), (5660, 14478), (6792, 12065), (7239, 11320), (7620, 10754), (8490, 9652)]