261544644

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1789}}^1$

素因数の和:1961

約数の個数: 72

約数和(自身を含む): 688047360

約数和(自身を除く): 426502716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 131, 186, 262, 279, 372, 393, 524, 558, 786, 1116, 1179, 1572, 1789, 2358, 3578, 4061, 4716, 5367, 7156, 8122, 10734, 12183, 16101, 16244, 21468, 24366, 32202, 36549, 48732, 55459, 64404, 73098, 110918, 146196, 166377, 221836, 234359, 332754, 468718, 499131, 665508, 703077, 937436, 998262, 1406154, 1996524, 2109231, 2812308, 4218462, 7265129, 8436924, 14530258, 21795387, 29060516, 43590774, 65386161, 87181548, 130772322, 261544644]

約数ペア:

[(1, 261544644), (2, 130772322), (3, 87181548), (4, 65386161), (6, 43590774), (9, 29060516), (12, 21795387), (18, 14530258), (31, 8436924), (36, 7265129), (62, 4218462), (93, 2812308), (124, 2109231), (131, 1996524), (186, 1406154), (262, 998262), (279, 937436), (372, 703077), (393, 665508), (524, 499131), (558, 468718), (786, 332754), (1116, 234359), (1179, 221836), (1572, 166377), (1789, 146196), (2358, 110918), (3578, 73098), (4061, 64404), (4716, 55459), (5367, 48732), (7156, 36549), (8122, 32202), (10734, 24366), (12183, 21468), (16101, 16244)]