39801980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48539}}^1$

素因数の和:48589

約数の個数: 24

約数和(自身を含む): 85624560

約数和(自身を除く): 45822580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 48539, 97078, 194156, 242695, 485390, 970780, 1990099, 3980198, 7960396, 9950495, 19900990, 39801980]

約数ペア:

[(1, 39801980), (2, 19900990), (4, 9950495), (5, 7960396), (10, 3980198), (20, 1990099), (41, 970780), (82, 485390), (164, 242695), (205, 194156), (410, 97078), (820, 48539)]