681287425

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 1068681600

約数和(自身を除く): 387394175

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 179, 239, 245, 325, 455, 637, 895, 1195, 1225, 1253, 1673, 2275, 2327, 3107, 3185, 4475, 5975, 6265, 8365, 8771, 11635, 11711, 15535, 15925, 16289, 21749, 31325, 41825, 42781, 43855, 58175, 58555, 77675, 81445, 108745, 114023, 152243, 213905, 219275, 292775, 299467, 407225, 543725, 556153, 570115, 761215, 1069525, 1497335, 2096269, 2780765, 2850575, 3806075, 3893071, 7486675, 10481345, 13903825, 19465355, 27251497, 52406725, 97326775, 136257485, 681287425]

約数ペア:

[(1, 681287425), (5, 136257485), (7, 97326775), (13, 52406725), (25, 27251497), (35, 19465355), (49, 13903825), (65, 10481345), (91, 7486675), (175, 3893071), (179, 3806075), (239, 2850575), (245, 2780765), (325, 2096269), (455, 1497335), (637, 1069525), (895, 761215), (1195, 570115), (1225, 556153), (1253, 543725), (1673, 407225), (2275, 299467), (2327, 292775), (3107, 219275), (3185, 213905), (4475, 152243), (5975, 114023), (6265, 108745), (8365, 81445), (8771, 77675), (11635, 58555), (11711, 58175), (15535, 43855), (15925, 42781), (16289, 41825), (21749, 31325)]