66776840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{457}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 162736560

約数和(自身を除く): 95959720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 281, 457, 520, 562, 914, 1124, 1405, 1828, 2248, 2285, 2810, 3653, 3656, 4570, 5620, 5941, 7306, 9140, 11240, 11882, 14612, 18265, 18280, 23764, 29224, 29705, 36530, 47528, 59410, 73060, 118820, 128417, 146120, 237640, 256834, 513668, 642085, 1027336, 1284170, 1669421, 2568340, 3338842, 5136680, 6677684, 8347105, 13355368, 16694210, 33388420, 66776840]

約数ペア:

[(1, 66776840), (2, 33388420), (4, 16694210), (5, 13355368), (8, 8347105), (10, 6677684), (13, 5136680), (20, 3338842), (26, 2568340), (40, 1669421), (52, 1284170), (65, 1027336), (104, 642085), (130, 513668), (260, 256834), (281, 237640), (457, 146120), (520, 128417), (562, 118820), (914, 73060), (1124, 59410), (1405, 47528), (1828, 36530), (2248, 29705), (2285, 29224), (2810, 23764), (3653, 18280), (3656, 18265), (4570, 14612), (5620, 11882), (5941, 11240), (7306, 9140)]