81962460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1609}}^1$

素因数の和:1907

約数の個数: 72

約数和(自身を含む): 249653040

約数和(自身を除く): 167690580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 566, 849, 1132, 1415, 1609, 1698, 2547, 2830, 3218, 3396, 4245, 4827, 5094, 5660, 6436, 8045, 8490, 9654, 10188, 12735, 14481, 16090, 16980, 19308, 24135, 25470, 28962, 32180, 48270, 50940, 57924, 72405, 96540, 144810, 289620, 455347, 910694, 1366041, 1821388, 2276735, 2732082, 4098123, 4553470, 5464164, 6830205, 8196246, 9106940, 13660410, 16392492, 20490615, 27320820, 40981230, 81962460]

約数ペア:

[(1, 81962460), (2, 40981230), (3, 27320820), (4, 20490615), (5, 16392492), (6, 13660410), (9, 9106940), (10, 8196246), (12, 6830205), (15, 5464164), (18, 4553470), (20, 4098123), (30, 2732082), (36, 2276735), (45, 1821388), (60, 1366041), (90, 910694), (180, 455347), (283, 289620), (566, 144810), (849, 96540), (1132, 72405), (1415, 57924), (1609, 50940), (1698, 48270), (2547, 32180), (2830, 28962), (3218, 25470), (3396, 24135), (4245, 19308), (4827, 16980), (5094, 16090), (5660, 14481), (6436, 12735), (8045, 10188), (8490, 9654)]