87751820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 208631808

約数和(自身を除く): 120879988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 47, 52, 65, 86, 94, 130, 167, 172, 188, 215, 235, 260, 334, 430, 470, 559, 611, 668, 835, 860, 940, 1118, 1222, 1670, 2021, 2171, 2236, 2444, 2795, 3055, 3340, 4042, 4342, 5590, 6110, 7181, 7849, 8084, 8684, 10105, 10855, 11180, 12220, 14362, 15698, 20210, 21710, 26273, 28724, 31396, 35905, 39245, 40420, 43420, 52546, 71810, 78490, 93353, 102037, 105092, 131365, 143620, 156980, 186706, 204074, 262730, 337507, 373412, 408148, 466765, 510185, 525460, 675014, 933530, 1020370, 1350028, 1687535, 1867060, 2040740, 3375070, 4387591, 6750140, 8775182, 17550364, 21937955, 43875910, 87751820]

約数ペア:

[(1, 87751820), (2, 43875910), (4, 21937955), (5, 17550364), (10, 8775182), (13, 6750140), (20, 4387591), (26, 3375070), (43, 2040740), (47, 1867060), (52, 1687535), (65, 1350028), (86, 1020370), (94, 933530), (130, 675014), (167, 525460), (172, 510185), (188, 466765), (215, 408148), (235, 373412), (260, 337507), (334, 262730), (430, 204074), (470, 186706), (559, 156980), (611, 143620), (668, 131365), (835, 105092), (860, 102037), (940, 93353), (1118, 78490), (1222, 71810), (1670, 52546), (2021, 43420), (2171, 40420), (2236, 39245), (2444, 35905), (2795, 31396), (3055, 28724), (3340, 26273), (4042, 21710), (4342, 20210), (5590, 15698), (6110, 14362), (7181, 12220), (7849, 11180), (8084, 10855), (8684, 10105)]