1285490050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1208

約数の個数: 72

約数和(自身を含む): 2609012700

約数和(自身を除く): 1323522650

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 149, 169, 298, 325, 338, 650, 745, 845, 1021, 1490, 1690, 1937, 2042, 3725, 3874, 4225, 5105, 7450, 8450, 9685, 10210, 13273, 19370, 25181, 25525, 26546, 48425, 50362, 51050, 66365, 96850, 125905, 132730, 152129, 172549, 251810, 304258, 331825, 345098, 629525, 663650, 760645, 862745, 1259050, 1521290, 1725490, 1977677, 3803225, 3955354, 4313725, 7606450, 8627450, 9888385, 19776770, 25709801, 49441925, 51419602, 98883850, 128549005, 257098010, 642745025, 1285490050]

約数ペア:

[(1, 1285490050), (2, 642745025), (5, 257098010), (10, 128549005), (13, 98883850), (25, 51419602), (26, 49441925), (50, 25709801), (65, 19776770), (130, 9888385), (149, 8627450), (169, 7606450), (298, 4313725), (325, 3955354), (338, 3803225), (650, 1977677), (745, 1725490), (845, 1521290), (1021, 1259050), (1490, 862745), (1690, 760645), (1937, 663650), (2042, 629525), (3725, 345098), (3874, 331825), (4225, 304258), (5105, 251810), (7450, 172549), (8450, 152129), (9685, 132730), (10210, 125905), (13273, 96850), (19370, 66365), (25181, 51050), (25525, 50362), (26546, 48425)]