81707652

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2459}}^1$

素因数の和:2553

約数の個数: 72

約数和(自身を含む): 225650880

約数和(自身を除く): 143943228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 639, 852, 923, 1278, 1846, 2459, 2556, 2769, 3692, 4918, 5538, 7377, 8307, 9836, 11076, 14754, 16614, 22131, 29508, 31967, 33228, 44262, 63934, 88524, 95901, 127868, 174589, 191802, 287703, 349178, 383604, 523767, 575406, 698356, 1047534, 1150812, 1571301, 2095068, 2269657, 3142602, 4539314, 6285204, 6808971, 9078628, 13617942, 20426913, 27235884, 40853826, 81707652]

約数ペア:

[(1, 81707652), (2, 40853826), (3, 27235884), (4, 20426913), (6, 13617942), (9, 9078628), (12, 6808971), (13, 6285204), (18, 4539314), (26, 3142602), (36, 2269657), (39, 2095068), (52, 1571301), (71, 1150812), (78, 1047534), (117, 698356), (142, 575406), (156, 523767), (213, 383604), (234, 349178), (284, 287703), (426, 191802), (468, 174589), (639, 127868), (852, 95901), (923, 88524), (1278, 63934), (1846, 44262), (2459, 33228), (2556, 31967), (2769, 29508), (3692, 22131), (4918, 16614), (5538, 14754), (7377, 11076), (8307, 9836)]