268821904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:368

約数の個数: 80

約数和(自身を含む): 577463040

約数和(自身を除く): 308641136

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 109, 142, 167, 208, 218, 284, 334, 436, 568, 668, 872, 923, 1136, 1336, 1417, 1744, 1846, 2171, 2672, 2834, 3692, 4342, 5668, 7384, 7739, 8684, 11336, 11857, 14768, 15478, 17368, 18203, 22672, 23714, 30956, 34736, 36406, 47428, 61912, 72812, 94856, 100607, 123824, 145624, 154141, 189712, 201214, 236639, 291248, 308282, 402428, 473278, 616564, 804856, 946556, 1233128, 1292413, 1609712, 1893112, 2466256, 2584826, 3786224, 5169652, 10339304, 16801369, 20678608, 33602738, 67205476, 134410952, 268821904]

約数ペア:

[(1, 268821904), (2, 134410952), (4, 67205476), (8, 33602738), (13, 20678608), (16, 16801369), (26, 10339304), (52, 5169652), (71, 3786224), (104, 2584826), (109, 2466256), (142, 1893112), (167, 1609712), (208, 1292413), (218, 1233128), (284, 946556), (334, 804856), (436, 616564), (568, 473278), (668, 402428), (872, 308282), (923, 291248), (1136, 236639), (1336, 201214), (1417, 189712), (1744, 154141), (1846, 145624), (2171, 123824), (2672, 100607), (2834, 94856), (3692, 72812), (4342, 61912), (5668, 47428), (7384, 36406), (7739, 34736), (8684, 30956), (11336, 23714), (11857, 22672), (14768, 18203), (15478, 17368)]