28540560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1091}}^1$

素因数の和:1216

約数の個数: 80

約数和(自身を含む): 89369280

約数和(自身を除く): 60828720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 872, 1090, 1091, 1308, 1635, 1744, 2180, 2182, 2616, 3270, 3273, 4360, 4364, 5232, 5455, 6540, 6546, 8720, 8728, 10910, 13080, 13092, 16365, 17456, 21820, 26160, 26184, 32730, 43640, 52368, 65460, 87280, 118919, 130920, 237838, 261840, 356757, 475676, 594595, 713514, 951352, 1189190, 1427028, 1783785, 1902704, 2378380, 2854056, 3567570, 4756760, 5708112, 7135140, 9513520, 14270280, 28540560]

約数ペア:

[(1, 28540560), (2, 14270280), (3, 9513520), (4, 7135140), (5, 5708112), (6, 4756760), (8, 3567570), (10, 2854056), (12, 2378380), (15, 1902704), (16, 1783785), (20, 1427028), (24, 1189190), (30, 951352), (40, 713514), (48, 594595), (60, 475676), (80, 356757), (109, 261840), (120, 237838), (218, 130920), (240, 118919), (327, 87280), (436, 65460), (545, 52368), (654, 43640), (872, 32730), (1090, 26184), (1091, 26160), (1308, 21820), (1635, 17456), (1744, 16365), (2180, 13092), (2182, 13080), (2616, 10910), (3270, 8728), (3273, 8720), (4360, 6546), (4364, 6540), (5232, 5455)]