28578540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1439}}^1$

素因数の和:1782

約数の個数: 48

約数和(自身を含む): 80317440

約数和(自身を除く): 51738900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 993, 1324, 1439, 1655, 1986, 2878, 3310, 3972, 4317, 4965, 5756, 6620, 7195, 8634, 9930, 14390, 17268, 19860, 21585, 28780, 43170, 86340, 476309, 952618, 1428927, 1905236, 2381545, 2857854, 4763090, 5715708, 7144635, 9526180, 14289270, 28578540]

約数ペア:

[(1, 28578540), (2, 14289270), (3, 9526180), (4, 7144635), (5, 5715708), (6, 4763090), (10, 2857854), (12, 2381545), (15, 1905236), (20, 1428927), (30, 952618), (60, 476309), (331, 86340), (662, 43170), (993, 28780), (1324, 21585), (1439, 19860), (1655, 17268), (1986, 14390), (2878, 9930), (3310, 8634), (3972, 7195), (4317, 6620), (4965, 5756)]