64633220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 146323800

約数和(自身を除く): 81690580

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 149, 164, 205, 230, 298, 410, 460, 529, 596, 745, 820, 943, 1058, 1490, 1886, 2116, 2645, 2980, 3427, 3772, 4715, 5290, 6109, 6854, 9430, 10580, 12218, 13708, 17135, 18860, 21689, 24436, 30545, 34270, 43378, 61090, 68540, 78821, 86756, 108445, 122180, 140507, 157642, 216890, 281014, 315284, 394105, 433780, 562028, 702535, 788210, 1405070, 1576420, 2810140, 3231661, 6463322, 12926644, 16158305, 32316610, 64633220]

約数ペア:

[(1, 64633220), (2, 32316610), (4, 16158305), (5, 12926644), (10, 6463322), (20, 3231661), (23, 2810140), (41, 1576420), (46, 1405070), (82, 788210), (92, 702535), (115, 562028), (149, 433780), (164, 394105), (205, 315284), (230, 281014), (298, 216890), (410, 157642), (460, 140507), (529, 122180), (596, 108445), (745, 86756), (820, 78821), (943, 68540), (1058, 61090), (1490, 43378), (1886, 34270), (2116, 30545), (2645, 24436), (2980, 21689), (3427, 18860), (3772, 17135), (4715, 13708), (5290, 12218), (6109, 10580), (6854, 9430)]