640300464

素因数分解:

$2^4\times 3^4\times {\mathrm{557}}^1\times {\mathrm{887}}^1$

素因数の和:1464

約数の個数: 100

約数和(自身を含む): 1858635504

約数和(自身を除く): 1218335040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 324, 432, 557, 648, 887, 1114, 1296, 1671, 1774, 2228, 2661, 3342, 3548, 4456, 5013, 5322, 6684, 7096, 7983, 8912, 10026, 10644, 13368, 14192, 15039, 15966, 20052, 21288, 23949, 26736, 30078, 31932, 40104, 42576, 45117, 47898, 60156, 63864, 71847, 80208, 90234, 95796, 120312, 127728, 143694, 180468, 191592, 240624, 287388, 360936, 383184, 494059, 574776, 721872, 988118, 1149552, 1482177, 1976236, 2964354, 3952472, 4446531, 5928708, 7904944, 8893062, 11857416, 13339593, 17786124, 23714832, 26679186, 35572248, 40018779, 53358372, 71144496, 80037558, 106716744, 160075116, 213433488, 320150232, 640300464]

約数ペア:

[(1, 640300464), (2, 320150232), (3, 213433488), (4, 160075116), (6, 106716744), (8, 80037558), (9, 71144496), (12, 53358372), (16, 40018779), (18, 35572248), (24, 26679186), (27, 23714832), (36, 17786124), (48, 13339593), (54, 11857416), (72, 8893062), (81, 7904944), (108, 5928708), (144, 4446531), (162, 3952472), (216, 2964354), (324, 1976236), (432, 1482177), (557, 1149552), (648, 988118), (887, 721872), (1114, 574776), (1296, 494059), (1671, 383184), (1774, 360936), (2228, 287388), (2661, 240624), (3342, 191592), (3548, 180468), (4456, 143694), (5013, 127728), (5322, 120312), (6684, 95796), (7096, 90234), (7983, 80208), (8912, 71847), (10026, 63864), (10644, 60156), (13368, 47898), (14192, 45117), (15039, 42576), (15966, 40104), (20052, 31932), (21288, 30078), (23949, 26736)]