20174555920

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{761879}}^1$

素因数の和:762223

約数の個数: 40

約数和(自身を含む): 47047613760

約数和(自身を除く): 26873057840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2648, 3310, 5296, 6620, 13240, 26480, 761879, 1523758, 3047516, 3809395, 6095032, 7618790, 12190064, 15237580, 30475160, 60950320, 252181949, 504363898, 1008727796, 1260909745, 2017455592, 2521819490, 4034911184, 5043638980, 10087277960, 20174555920]

約数ペア:

[(1, 20174555920), (2, 10087277960), (4, 5043638980), (5, 4034911184), (8, 2521819490), (10, 2017455592), (16, 1260909745), (20, 1008727796), (40, 504363898), (80, 252181949), (331, 60950320), (662, 30475160), (1324, 15237580), (1655, 12190064), (2648, 7618790), (3310, 6095032), (5296, 3809395), (6620, 3047516), (13240, 1523758), (26480, 761879)]