20055880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38569}}^1$

素因数の和:38593

約数の個数: 32

約数和(自身を含む): 48598200

約数和(自身を除く): 28542320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38569, 77138, 154276, 192845, 308552, 385690, 501397, 771380, 1002794, 1542760, 2005588, 2506985, 4011176, 5013970, 10027940, 20055880]

約数ペア:

[(1, 20055880), (2, 10027940), (4, 5013970), (5, 4011176), (8, 2506985), (10, 2005588), (13, 1542760), (20, 1002794), (26, 771380), (40, 501397), (52, 385690), (65, 308552), (104, 192845), (130, 154276), (260, 77138), (520, 38569)]