51591280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 130616640

約数和(自身を除く): 79025360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 208, 226, 260, 439, 452, 520, 565, 878, 904, 1040, 1130, 1469, 1756, 1808, 2195, 2260, 2938, 3512, 4390, 4520, 5707, 5876, 7024, 7345, 8780, 9040, 11414, 11752, 14690, 17560, 22828, 23504, 28535, 29380, 35120, 45656, 49607, 57070, 58760, 91312, 99214, 114140, 117520, 198428, 228280, 248035, 396856, 456560, 496070, 644891, 793712, 992140, 1289782, 1984280, 2579564, 3224455, 3968560, 5159128, 6448910, 10318256, 12897820, 25795640, 51591280]

約数ペア:

[(1, 51591280), (2, 25795640), (4, 12897820), (5, 10318256), (8, 6448910), (10, 5159128), (13, 3968560), (16, 3224455), (20, 2579564), (26, 1984280), (40, 1289782), (52, 992140), (65, 793712), (80, 644891), (104, 496070), (113, 456560), (130, 396856), (208, 248035), (226, 228280), (260, 198428), (439, 117520), (452, 114140), (520, 99214), (565, 91312), (878, 58760), (904, 57070), (1040, 49607), (1130, 45656), (1469, 35120), (1756, 29380), (1808, 28535), (2195, 23504), (2260, 22828), (2938, 17560), (3512, 14690), (4390, 11752), (4520, 11414), (5707, 9040), (5876, 8780), (7024, 7345)]