18288920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35171}}^1$

素因数の和:35195

約数の個数: 32

約数和(自身を含む): 44316720

約数和(自身を除く): 26027800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35171, 70342, 140684, 175855, 281368, 351710, 457223, 703420, 914446, 1406840, 1828892, 2286115, 3657784, 4572230, 9144460, 18288920]

約数ペア:

[(1, 18288920), (2, 9144460), (4, 4572230), (5, 3657784), (8, 2286115), (10, 1828892), (13, 1406840), (20, 914446), (26, 703420), (40, 457223), (52, 351710), (65, 281368), (104, 175855), (130, 140684), (260, 70342), (520, 35171)]