71412640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 144

約数和(自身を含む): 193687200

約数和(自身を除く): 122274560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 139, 152, 160, 169, 190, 208, 247, 260, 278, 304, 338, 380, 416, 494, 520, 556, 608, 676, 695, 760, 845, 988, 1040, 1112, 1235, 1352, 1390, 1520, 1690, 1807, 1976, 2080, 2224, 2470, 2641, 2704, 2780, 3040, 3211, 3380, 3614, 3952, 4448, 4940, 5282, 5408, 5560, 6422, 6760, 7228, 7904, 9035, 9880, 10564, 11120, 12844, 13205, 13520, 14456, 16055, 18070, 19760, 21128, 22240, 23491, 25688, 26410, 27040, 28912, 32110, 34333, 36140, 39520, 42256, 46982, 51376, 52820, 57824, 64220, 68666, 72280, 84512, 93964, 102752, 105640, 117455, 128440, 137332, 144560, 171665, 187928, 211280, 234910, 256880, 274664, 289120, 343330, 375856, 422560, 446329, 469820, 513760, 549328, 686660, 751712, 892658, 939640, 1098656, 1373320, 1785316, 1879280, 2231645, 2746640, 3570632, 3758560, 4463290, 5493280, 7141264, 8926580, 14282528, 17853160, 35706320, 71412640]

約数ペア:

[(1, 71412640), (2, 35706320), (4, 17853160), (5, 14282528), (8, 8926580), (10, 7141264), (13, 5493280), (16, 4463290), (19, 3758560), (20, 3570632), (26, 2746640), (32, 2231645), (38, 1879280), (40, 1785316), (52, 1373320), (65, 1098656), (76, 939640), (80, 892658), (95, 751712), (104, 686660), (130, 549328), (139, 513760), (152, 469820), (160, 446329), (169, 422560), (190, 375856), (208, 343330), (247, 289120), (260, 274664), (278, 256880), (304, 234910), (338, 211280), (380, 187928), (416, 171665), (494, 144560), (520, 137332), (556, 128440), (608, 117455), (676, 105640), (695, 102752), (760, 93964), (845, 84512), (988, 72280), (1040, 68666), (1112, 64220), (1235, 57824), (1352, 52820), (1390, 51376), (1520, 46982), (1690, 42256), (1807, 39520), (1976, 36140), (2080, 34333), (2224, 32110), (2470, 28912), (2641, 27040), (2704, 26410), (2780, 25688), (3040, 23491), (3211, 22240), (3380, 21128), (3614, 19760), (3952, 18070), (4448, 16055), (4940, 14456), (5282, 13520), (5408, 13205), (5560, 12844), (6422, 11120), (6760, 10564), (7228, 9880), (7904, 9035)]