4997980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 11571840

約数和(自身を除く): 6573860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 409, 470, 611, 818, 940, 1222, 1636, 2045, 2444, 3055, 4090, 5317, 6110, 8180, 10634, 12220, 19223, 21268, 26585, 38446, 53170, 76892, 96115, 106340, 192230, 249899, 384460, 499798, 999596, 1249495, 2498990, 4997980]

約数ペア:

[(1, 4997980), (2, 2498990), (4, 1249495), (5, 999596), (10, 499798), (13, 384460), (20, 249899), (26, 192230), (47, 106340), (52, 96115), (65, 76892), (94, 53170), (130, 38446), (188, 26585), (235, 21268), (260, 19223), (409, 12220), (470, 10634), (611, 8180), (818, 6110), (940, 5317), (1222, 4090), (1636, 3055), (2045, 2444)]