28690120

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4007}}^1$

素因数の和:4197

約数の個数: 32

約数和(自身を含む): 64929600

約数和(自身を除く): 36239480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 4007, 7160, 8014, 16028, 20035, 32056, 40070, 80140, 160280, 717253, 1434506, 2869012, 3586265, 5738024, 7172530, 14345060, 28690120]

約数ペア:

[(1, 28690120), (2, 14345060), (4, 7172530), (5, 5738024), (8, 3586265), (10, 2869012), (20, 1434506), (40, 717253), (179, 160280), (358, 80140), (716, 40070), (895, 32056), (1432, 20035), (1790, 16028), (3580, 8014), (4007, 7160)]