1990991580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{562427}}^1$

素因数の和:562498

約数の個数: 48

約数和(自身を含む): 5669274240

約数和(自身を除く): 3678282660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 118, 177, 236, 295, 354, 590, 708, 885, 1180, 1770, 3540, 562427, 1124854, 1687281, 2249708, 2812135, 3374562, 5624270, 6749124, 8436405, 11248540, 16872810, 33183193, 33745620, 66366386, 99549579, 132732772, 165915965, 199099158, 331831930, 398198316, 497747895, 663663860, 995495790, 1990991580]

約数ペア:

[(1, 1990991580), (2, 995495790), (3, 663663860), (4, 497747895), (5, 398198316), (6, 331831930), (10, 199099158), (12, 165915965), (15, 132732772), (20, 99549579), (30, 66366386), (59, 33745620), (60, 33183193), (118, 16872810), (177, 11248540), (236, 8436405), (295, 6749124), (354, 5624270), (590, 3374562), (708, 2812135), (885, 2249708), (1180, 1687281), (1770, 1124854), (3540, 562427)]