64326980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1381}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 144181296

約数和(自身を除く): 79854316

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 340, 548, 685, 1370, 1381, 2329, 2740, 2762, 4658, 5524, 6905, 9316, 11645, 13810, 23290, 23477, 27620, 46580, 46954, 93908, 117385, 189197, 234770, 378394, 469540, 756788, 945985, 1891970, 3216349, 3783940, 6432698, 12865396, 16081745, 32163490, 64326980]

約数ペア:

[(1, 64326980), (2, 32163490), (4, 16081745), (5, 12865396), (10, 6432698), (17, 3783940), (20, 3216349), (34, 1891970), (68, 945985), (85, 756788), (137, 469540), (170, 378394), (274, 234770), (340, 189197), (548, 117385), (685, 93908), (1370, 46954), (1381, 46580), (2329, 27620), (2740, 23477), (2762, 23290), (4658, 13810), (5524, 11645), (6905, 9316)]