642524740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{829}}^1$

素因数の和:1133

約数の個数: 96

約数和(自身を含む): 1592962560

約数和(自身を除く): 950437820

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 271, 286, 542, 572, 715, 829, 1084, 1355, 1430, 1658, 2710, 2860, 2981, 3316, 3523, 4145, 5420, 5962, 7046, 8290, 9119, 10777, 11924, 14092, 14905, 16580, 17615, 18238, 21554, 29810, 35230, 36476, 38753, 43108, 45595, 53885, 59620, 70460, 77506, 91190, 107770, 118547, 155012, 182380, 193765, 215540, 224659, 237094, 387530, 449318, 474188, 592735, 775060, 898636, 1123295, 1185470, 2246590, 2370940, 2471249, 2920567, 4493180, 4942498, 5841134, 9884996, 11682268, 12356245, 14602835, 24712490, 29205670, 32126237, 49424980, 58411340, 64252474, 128504948, 160631185, 321262370, 642524740]

約数ペア:

[(1, 642524740), (2, 321262370), (4, 160631185), (5, 128504948), (10, 64252474), (11, 58411340), (13, 49424980), (20, 32126237), (22, 29205670), (26, 24712490), (44, 14602835), (52, 12356245), (55, 11682268), (65, 9884996), (110, 5841134), (130, 4942498), (143, 4493180), (220, 2920567), (260, 2471249), (271, 2370940), (286, 2246590), (542, 1185470), (572, 1123295), (715, 898636), (829, 775060), (1084, 592735), (1355, 474188), (1430, 449318), (1658, 387530), (2710, 237094), (2860, 224659), (2981, 215540), (3316, 193765), (3523, 182380), (4145, 155012), (5420, 118547), (5962, 107770), (7046, 91190), (8290, 77506), (9119, 70460), (10777, 59620), (11924, 53885), (14092, 45595), (14905, 43108), (16580, 38753), (17615, 36476), (18238, 35230), (21554, 29810)]