28442760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{563}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 85682880

約数和(自身を除く): 57240120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 421, 563, 842, 1126, 1263, 1684, 1689, 2105, 2252, 2526, 2815, 3368, 3378, 4210, 4504, 5052, 5630, 6315, 6756, 8420, 8445, 10104, 11260, 12630, 13512, 16840, 16890, 22520, 25260, 33780, 50520, 67560, 237023, 474046, 711069, 948092, 1185115, 1422138, 1896184, 2370230, 2844276, 3555345, 4740460, 5688552, 7110690, 9480920, 14221380, 28442760]

約数ペア:

[(1, 28442760), (2, 14221380), (3, 9480920), (4, 7110690), (5, 5688552), (6, 4740460), (8, 3555345), (10, 2844276), (12, 2370230), (15, 1896184), (20, 1422138), (24, 1185115), (30, 948092), (40, 711069), (60, 474046), (120, 237023), (421, 67560), (563, 50520), (842, 33780), (1126, 25260), (1263, 22520), (1684, 16890), (1689, 16840), (2105, 13512), (2252, 12630), (2526, 11260), (2815, 10104), (3368, 8445), (3378, 8420), (4210, 6756), (4504, 6315), (5052, 5630)]