640504150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3089}}^1$

素因数の和:3154

約数の個数: 96

約数和(自身を含む): 1448344800

約数和(自身を除く): 807840650

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 29, 50, 55, 58, 65, 110, 130, 143, 145, 275, 286, 290, 319, 325, 377, 550, 638, 650, 715, 725, 754, 1430, 1450, 1595, 1885, 3089, 3190, 3575, 3770, 4147, 6178, 7150, 7975, 8294, 9425, 15445, 15950, 18850, 20735, 30890, 33979, 40157, 41470, 67958, 77225, 80314, 89581, 103675, 154450, 169895, 179162, 200785, 207350, 339790, 401570, 441727, 447905, 849475, 883454, 895810, 985391, 1003925, 1164553, 1698950, 1970782, 2007850, 2208635, 2239525, 2329106, 4417270, 4479050, 4926955, 5822765, 9853910, 11043175, 11645530, 12810083, 22086350, 24634775, 25620166, 29113825, 49269550, 58227650, 64050415, 128100830, 320252075, 640504150]

約数ペア:

[(1, 640504150), (2, 320252075), (5, 128100830), (10, 64050415), (11, 58227650), (13, 49269550), (22, 29113825), (25, 25620166), (26, 24634775), (29, 22086350), (50, 12810083), (55, 11645530), (58, 11043175), (65, 9853910), (110, 5822765), (130, 4926955), (143, 4479050), (145, 4417270), (275, 2329106), (286, 2239525), (290, 2208635), (319, 2007850), (325, 1970782), (377, 1698950), (550, 1164553), (638, 1003925), (650, 985391), (715, 895810), (725, 883454), (754, 849475), (1430, 447905), (1450, 441727), (1595, 401570), (1885, 339790), (3089, 207350), (3190, 200785), (3575, 179162), (3770, 169895), (4147, 154450), (6178, 103675), (7150, 89581), (7975, 80314), (8294, 77225), (9425, 67958), (15445, 41470), (15950, 40157), (18850, 33979), (20735, 30890)]