20025980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77023}}^1$

素因数の和:77045

約数の個数: 24

約数和(自身を含む): 45290112

約数和(自身を除く): 25264132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77023, 154046, 308092, 385115, 770230, 1001299, 1540460, 2002598, 4005196, 5006495, 10012990, 20025980]

約数ペア:

[(1, 20025980), (2, 10012990), (4, 5006495), (5, 4005196), (10, 2002598), (13, 1540460), (20, 1001299), (26, 770230), (52, 385115), (65, 308092), (130, 154046), (260, 77023)]