81378960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26083}}^1$

素因数の和:26112

約数の個数: 80

約数和(自身を含む): 271690944

約数和(自身を除く): 190311984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 26083, 52166, 78249, 104332, 130415, 156498, 208664, 260830, 312996, 339079, 391245, 417328, 521660, 625992, 678158, 782490, 1017237, 1043320, 1251984, 1356316, 1564980, 1695395, 2034474, 2086640, 2712632, 3129960, 3390790, 4068948, 5086185, 5425264, 6259920, 6781580, 8137896, 10172370, 13563160, 16275792, 20344740, 27126320, 40689480, 81378960]

約数ペア:

[(1, 81378960), (2, 40689480), (3, 27126320), (4, 20344740), (5, 16275792), (6, 13563160), (8, 10172370), (10, 8137896), (12, 6781580), (13, 6259920), (15, 5425264), (16, 5086185), (20, 4068948), (24, 3390790), (26, 3129960), (30, 2712632), (39, 2086640), (40, 2034474), (48, 1695395), (52, 1564980), (60, 1356316), (65, 1251984), (78, 1043320), (80, 1017237), (104, 782490), (120, 678158), (130, 625992), (156, 521660), (195, 417328), (208, 391245), (240, 339079), (260, 312996), (312, 260830), (390, 208664), (520, 156498), (624, 130415), (780, 104332), (1040, 78249), (1560, 52166), (3120, 26083)]