20214080

素因数分解:

$2^6\times 5^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:547

約数の個数: 56

約数和(自身を含む): 48539400

約数和(自身を除く): 28325320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 181, 320, 349, 362, 698, 724, 905, 1396, 1448, 1745, 1810, 2792, 2896, 3490, 3620, 5584, 5792, 6980, 7240, 11168, 11584, 13960, 14480, 22336, 27920, 28960, 55840, 57920, 63169, 111680, 126338, 252676, 315845, 505352, 631690, 1010704, 1263380, 2021408, 2526760, 4042816, 5053520, 10107040, 20214080]

約数ペア:

[(1, 20214080), (2, 10107040), (4, 5053520), (5, 4042816), (8, 2526760), (10, 2021408), (16, 1263380), (20, 1010704), (32, 631690), (40, 505352), (64, 315845), (80, 252676), (160, 126338), (181, 111680), (320, 63169), (349, 57920), (362, 55840), (698, 28960), (724, 27920), (905, 22336), (1396, 14480), (1448, 13960), (1745, 11584), (1810, 11168), (2792, 7240), (2896, 6980), (3490, 5792), (3620, 5584)]