291275890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 571536000

約数和(自身を除く): 280260110

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 139, 190, 205, 269, 278, 410, 538, 695, 779, 1345, 1390, 1558, 2641, 2690, 3895, 5111, 5282, 5699, 7790, 10222, 11029, 11398, 13205, 22058, 25555, 26410, 28495, 37391, 51110, 55145, 56990, 74782, 108281, 110290, 186955, 209551, 216562, 373910, 419102, 541405, 710429, 1047755, 1082810, 1420858, 1533031, 2095510, 3066062, 3552145, 7104290, 7665155, 15330310, 29127589, 58255178, 145637945, 291275890]

約数ペア:

[(1, 291275890), (2, 145637945), (5, 58255178), (10, 29127589), (19, 15330310), (38, 7665155), (41, 7104290), (82, 3552145), (95, 3066062), (139, 2095510), (190, 1533031), (205, 1420858), (269, 1082810), (278, 1047755), (410, 710429), (538, 541405), (695, 419102), (779, 373910), (1345, 216562), (1390, 209551), (1558, 186955), (2641, 110290), (2690, 108281), (3895, 74782), (5111, 56990), (5282, 55145), (5699, 51110), (7790, 37391), (10222, 28495), (11029, 26410), (11398, 25555), (13205, 22058)]