256475680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{353}}^1$

素因数の和:626

約数の個数: 96

約数和(自身を含む): 642297600

約数和(自身を除く): 385821920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 239, 304, 353, 380, 478, 608, 706, 760, 956, 1195, 1412, 1520, 1765, 1912, 2390, 2824, 3040, 3530, 3824, 4541, 4780, 5648, 6707, 7060, 7648, 9082, 9560, 11296, 13414, 14120, 18164, 19120, 22705, 26828, 28240, 33535, 36328, 38240, 45410, 53656, 56480, 67070, 72656, 84367, 90820, 107312, 134140, 145312, 168734, 181640, 214624, 268280, 337468, 363280, 421835, 536560, 674936, 726560, 843670, 1073120, 1349872, 1602973, 1687340, 2699744, 3205946, 3374680, 6411892, 6749360, 8014865, 12823784, 13498720, 16029730, 25647568, 32059460, 51295136, 64118920, 128237840, 256475680]

約数ペア:

[(1, 256475680), (2, 128237840), (4, 64118920), (5, 51295136), (8, 32059460), (10, 25647568), (16, 16029730), (19, 13498720), (20, 12823784), (32, 8014865), (38, 6749360), (40, 6411892), (76, 3374680), (80, 3205946), (95, 2699744), (152, 1687340), (160, 1602973), (190, 1349872), (239, 1073120), (304, 843670), (353, 726560), (380, 674936), (478, 536560), (608, 421835), (706, 363280), (760, 337468), (956, 268280), (1195, 214624), (1412, 181640), (1520, 168734), (1765, 145312), (1912, 134140), (2390, 107312), (2824, 90820), (3040, 84367), (3530, 72656), (3824, 67070), (4541, 56480), (4780, 53656), (5648, 45410), (6707, 38240), (7060, 36328), (7648, 33535), (9082, 28240), (9560, 26828), (11296, 22705), (13414, 19120), (14120, 18164)]