641351230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 1269354240

約数和(自身を除く): 628003010

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 197, 317, 394, 395, 634, 790, 985, 1027, 1585, 1970, 2054, 2561, 3170, 4121, 5122, 5135, 8242, 10270, 12805, 15563, 20605, 25043, 25610, 31126, 41210, 50086, 62449, 77815, 124898, 125215, 155630, 202319, 250430, 312245, 325559, 404638, 624490, 651118, 811837, 1011595, 1623674, 1627795, 2023190, 3255590, 4059185, 4933471, 8118370, 9866942, 24667355, 49334710, 64135123, 128270246, 320675615, 641351230]

約数ペア:

[(1, 641351230), (2, 320675615), (5, 128270246), (10, 64135123), (13, 49334710), (26, 24667355), (65, 9866942), (79, 8118370), (130, 4933471), (158, 4059185), (197, 3255590), (317, 2023190), (394, 1627795), (395, 1623674), (634, 1011595), (790, 811837), (985, 651118), (1027, 624490), (1585, 404638), (1970, 325559), (2054, 312245), (2561, 250430), (3170, 202319), (4121, 155630), (5122, 125215), (5135, 124898), (8242, 77815), (10270, 62449), (12805, 50086), (15563, 41210), (20605, 31126), (25043, 25610)]