64753640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{823}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 167304960

約数和(自身を除く): 102551320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 823, 1124, 1405, 1646, 1967, 2248, 2810, 3292, 3934, 4115, 5620, 5761, 6584, 7868, 8230, 9835, 11240, 11522, 15736, 16460, 19670, 23044, 28805, 32920, 39340, 46088, 57610, 78680, 115220, 230440, 231263, 462526, 925052, 1156315, 1618841, 1850104, 2312630, 3237682, 4625260, 6475364, 8094205, 9250520, 12950728, 16188410, 32376820, 64753640]

約数ペア:

[(1, 64753640), (2, 32376820), (4, 16188410), (5, 12950728), (7, 9250520), (8, 8094205), (10, 6475364), (14, 4625260), (20, 3237682), (28, 2312630), (35, 1850104), (40, 1618841), (56, 1156315), (70, 925052), (140, 462526), (280, 231263), (281, 230440), (562, 115220), (823, 78680), (1124, 57610), (1405, 46088), (1646, 39340), (1967, 32920), (2248, 28805), (2810, 23044), (3292, 19670), (3934, 16460), (4115, 15736), (5620, 11522), (5761, 11240), (6584, 9835), (7868, 8230)]