20659730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 46545408

約数和(自身を除く): 25885678

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 311, 365, 455, 511, 622, 730, 910, 949, 1022, 1555, 1898, 2177, 2555, 3110, 4043, 4354, 4745, 5110, 6643, 8086, 9490, 10885, 13286, 20215, 21770, 22703, 28301, 33215, 40430, 45406, 56602, 66430, 113515, 141505, 158921, 227030, 283010, 295139, 317842, 590278, 794605, 1475695, 1589210, 2065973, 2951390, 4131946, 10329865, 20659730]

約数ペア:

[(1, 20659730), (2, 10329865), (5, 4131946), (7, 2951390), (10, 2065973), (13, 1589210), (14, 1475695), (26, 794605), (35, 590278), (65, 317842), (70, 295139), (73, 283010), (91, 227030), (130, 158921), (146, 141505), (182, 113515), (311, 66430), (365, 56602), (455, 45406), (511, 40430), (622, 33215), (730, 28301), (910, 22703), (949, 21770), (1022, 20215), (1555, 13286), (1898, 10885), (2177, 9490), (2555, 8086), (3110, 6643), (4043, 5110), (4354, 4745)]