28572840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 93693600

約数和(自身を除く): 65120760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 139, 180, 278, 360, 417, 556, 571, 695, 834, 1112, 1142, 1251, 1390, 1668, 1713, 2085, 2284, 2502, 2780, 2855, 3336, 3426, 4170, 4568, 5004, 5139, 5560, 5710, 6255, 6852, 8340, 8565, 10008, 10278, 11420, 12510, 13704, 16680, 17130, 20556, 22840, 25020, 25695, 34260, 41112, 50040, 51390, 68520, 79369, 102780, 158738, 205560, 238107, 317476, 396845, 476214, 634952, 714321, 793690, 952428, 1190535, 1428642, 1587380, 1904856, 2381070, 2857284, 3174760, 3571605, 4762140, 5714568, 7143210, 9524280, 14286420, 28572840]

約数ペア:

[(1, 28572840), (2, 14286420), (3, 9524280), (4, 7143210), (5, 5714568), (6, 4762140), (8, 3571605), (9, 3174760), (10, 2857284), (12, 2381070), (15, 1904856), (18, 1587380), (20, 1428642), (24, 1190535), (30, 952428), (36, 793690), (40, 714321), (45, 634952), (60, 476214), (72, 396845), (90, 317476), (120, 238107), (139, 205560), (180, 158738), (278, 102780), (360, 79369), (417, 68520), (556, 51390), (571, 50040), (695, 41112), (834, 34260), (1112, 25695), (1142, 25020), (1251, 22840), (1390, 20556), (1668, 17130), (1713, 16680), (2085, 13704), (2284, 12510), (2502, 11420), (2780, 10278), (2855, 10008), (3336, 8565), (3426, 8340), (4170, 6852), (4568, 6255), (5004, 5710), (5139, 5560)]