440820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 1397760

約数和(自身を除く): 956940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 79, 90, 93, 124, 155, 158, 180, 186, 237, 279, 310, 316, 372, 395, 465, 474, 558, 620, 711, 790, 930, 948, 1116, 1185, 1395, 1422, 1580, 1860, 2370, 2449, 2790, 2844, 3555, 4740, 4898, 5580, 7110, 7347, 9796, 12245, 14220, 14694, 22041, 24490, 29388, 36735, 44082, 48980, 73470, 88164, 110205, 146940, 220410, 440820]

約数ペア:

[(1, 440820), (2, 220410), (3, 146940), (4, 110205), (5, 88164), (6, 73470), (9, 48980), (10, 44082), (12, 36735), (15, 29388), (18, 24490), (20, 22041), (30, 14694), (31, 14220), (36, 12245), (45, 9796), (60, 7347), (62, 7110), (79, 5580), (90, 4898), (93, 4740), (124, 3555), (155, 2844), (158, 2790), (180, 2449), (186, 2370), (237, 1860), (279, 1580), (310, 1422), (316, 1395), (372, 1185), (395, 1116), (465, 948), (474, 930), (558, 790), (620, 711)]