80717180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1289}}^1$

素因数の和:1430

約数の個数: 48

約数和(自身を含む): 176843520

約数和(自身を除く): 96126340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 404, 505, 620, 1010, 1289, 2020, 2578, 3131, 5156, 6262, 6445, 12524, 12890, 15655, 25780, 31310, 39959, 62620, 79918, 130189, 159836, 199795, 260378, 399590, 520756, 650945, 799180, 1301890, 2603780, 4035859, 8071718, 16143436, 20179295, 40358590, 80717180]

約数ペア:

[(1, 80717180), (2, 40358590), (4, 20179295), (5, 16143436), (10, 8071718), (20, 4035859), (31, 2603780), (62, 1301890), (101, 799180), (124, 650945), (155, 520756), (202, 399590), (310, 260378), (404, 199795), (505, 159836), (620, 130189), (1010, 79918), (1289, 62620), (2020, 39959), (2578, 31310), (3131, 25780), (5156, 15655), (6262, 12890), (6445, 12524)]