257426466

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1607

約数の個数: 64

約数和(自身を含む): 584534016

約数和(自身を除く): 327107550

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 61, 66, 86, 122, 129, 183, 258, 366, 473, 671, 946, 1342, 1419, 1487, 2013, 2623, 2838, 2974, 4026, 4461, 5246, 7869, 8922, 15738, 16357, 28853, 32714, 49071, 57706, 63941, 86559, 90707, 98142, 127882, 173118, 181414, 191823, 272121, 383646, 544242, 703351, 997777, 1406702, 1995554, 2110053, 2993331, 3900401, 4220106, 5986662, 7800802, 11701203, 23402406, 42904411, 85808822, 128713233, 257426466]

約数ペア:

[(1, 257426466), (2, 128713233), (3, 85808822), (6, 42904411), (11, 23402406), (22, 11701203), (33, 7800802), (43, 5986662), (61, 4220106), (66, 3900401), (86, 2993331), (122, 2110053), (129, 1995554), (183, 1406702), (258, 997777), (366, 703351), (473, 544242), (671, 383646), (946, 272121), (1342, 191823), (1419, 181414), (1487, 173118), (2013, 127882), (2623, 98142), (2838, 90707), (2974, 86559), (4026, 63941), (4461, 57706), (5246, 49071), (7869, 32714), (8922, 28853), (15738, 16357)]