618768940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{11987}}^1$

素因数の和:12114

約数の個数: 48

約数和(自身を含む): 1359439200

約数和(自身を除く): 740670260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 178, 290, 356, 445, 580, 890, 1780, 2581, 5162, 10324, 11987, 12905, 23974, 25810, 47948, 51620, 59935, 119870, 239740, 347623, 695246, 1066843, 1390492, 1738115, 2133686, 3476230, 4267372, 5334215, 6952460, 10668430, 21336860, 30938447, 61876894, 123753788, 154692235, 309384470, 618768940]

約数ペア:

[(1, 618768940), (2, 309384470), (4, 154692235), (5, 123753788), (10, 61876894), (20, 30938447), (29, 21336860), (58, 10668430), (89, 6952460), (116, 5334215), (145, 4267372), (178, 3476230), (290, 2133686), (356, 1738115), (445, 1390492), (580, 1066843), (890, 695246), (1780, 347623), (2581, 239740), (5162, 119870), (10324, 59935), (11987, 51620), (12905, 47948), (23974, 25810)]