1666340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 72

約数和(自身を含む): 4150440

約数和(自身を除く): 2484100

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 29, 34, 52, 58, 65, 68, 85, 116, 130, 145, 169, 170, 221, 260, 290, 338, 340, 377, 442, 493, 580, 676, 754, 845, 884, 986, 1105, 1508, 1690, 1885, 1972, 2210, 2465, 2873, 3380, 3770, 4420, 4901, 4930, 5746, 6409, 7540, 9802, 9860, 11492, 12818, 14365, 19604, 24505, 25636, 28730, 32045, 49010, 57460, 64090, 83317, 98020, 128180, 166634, 333268, 416585, 833170, 1666340]

約数ペア:

[(1, 1666340), (2, 833170), (4, 416585), (5, 333268), (10, 166634), (13, 128180), (17, 98020), (20, 83317), (26, 64090), (29, 57460), (34, 49010), (52, 32045), (58, 28730), (65, 25636), (68, 24505), (85, 19604), (116, 14365), (130, 12818), (145, 11492), (169, 9860), (170, 9802), (221, 7540), (260, 6409), (290, 5746), (338, 4930), (340, 4901), (377, 4420), (442, 3770), (493, 3380), (580, 2873), (676, 2465), (754, 2210), (845, 1972), (884, 1885), (986, 1690), (1105, 1508)]