21665520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30091}}^1$

素因数の和:30110

約数の個数: 60

約数和(自身を含む): 72762456

約数和(自身を除く): 51096936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30091, 60182, 90273, 120364, 150455, 180546, 240728, 270819, 300910, 361092, 451365, 481456, 541638, 601820, 722184, 902730, 1083276, 1203640, 1354095, 1444368, 1805460, 2166552, 2407280, 2708190, 3610920, 4333104, 5416380, 7221840, 10832760, 21665520]

約数ペア:

[(1, 21665520), (2, 10832760), (3, 7221840), (4, 5416380), (5, 4333104), (6, 3610920), (8, 2708190), (9, 2407280), (10, 2166552), (12, 1805460), (15, 1444368), (16, 1354095), (18, 1203640), (20, 1083276), (24, 902730), (30, 722184), (36, 601820), (40, 541638), (45, 481456), (48, 451365), (60, 361092), (72, 300910), (80, 270819), (90, 240728), (120, 180546), (144, 150455), (180, 120364), (240, 90273), (360, 60182), (720, 30091)]