81813420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34963}}^1$

素因数の和:34991

約数の個数: 72

約数和(自身を含む): 267264816

約数和(自身を除く): 185451396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34963, 69926, 104889, 139852, 174815, 209778, 314667, 349630, 419556, 454519, 524445, 629334, 699260, 909038, 1048890, 1258668, 1363557, 1573335, 1818076, 2097780, 2272595, 2727114, 3146670, 4090671, 4545190, 5454228, 6293340, 6817785, 8181342, 9090380, 13635570, 16362684, 20453355, 27271140, 40906710, 81813420]

約数ペア:

[(1, 81813420), (2, 40906710), (3, 27271140), (4, 20453355), (5, 16362684), (6, 13635570), (9, 9090380), (10, 8181342), (12, 6817785), (13, 6293340), (15, 5454228), (18, 4545190), (20, 4090671), (26, 3146670), (30, 2727114), (36, 2272595), (39, 2097780), (45, 1818076), (52, 1573335), (60, 1363557), (65, 1258668), (78, 1048890), (90, 909038), (117, 699260), (130, 629334), (156, 524445), (180, 454519), (195, 419556), (234, 349630), (260, 314667), (390, 209778), (468, 174815), (585, 139852), (780, 104889), (1170, 69926), (2340, 34963)]