28707920

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1489}}^1$

素因数の和:1743

約数の個数: 40

約数和(自身を含む): 67067880

約数和(自身を除く): 38359960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1205, 1489, 1928, 2410, 2978, 3856, 4820, 5956, 7445, 9640, 11912, 14890, 19280, 23824, 29780, 59560, 119120, 358849, 717698, 1435396, 1794245, 2870792, 3588490, 5741584, 7176980, 14353960, 28707920]

約数ペア:

[(1, 28707920), (2, 14353960), (4, 7176980), (5, 5741584), (8, 3588490), (10, 2870792), (16, 1794245), (20, 1435396), (40, 717698), (80, 358849), (241, 119120), (482, 59560), (964, 29780), (1205, 23824), (1489, 19280), (1928, 14890), (2410, 11912), (2978, 9640), (3856, 7445), (4820, 5956)]