20542890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4201}}^1$

素因数の和:4374

約数の個数: 32

約数和(自身を含む): 49617216

約数和(自身を除く): 29074326

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 4201, 4890, 8402, 12603, 21005, 25206, 42010, 63015, 126030, 684763, 1369526, 2054289, 3423815, 4108578, 6847630, 10271445, 20542890]

約数ペア:

[(1, 20542890), (2, 10271445), (3, 6847630), (5, 4108578), (6, 3423815), (10, 2054289), (15, 1369526), (30, 684763), (163, 126030), (326, 63015), (489, 42010), (815, 25206), (978, 21005), (1630, 12603), (2445, 8402), (4201, 4890)]