20443020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26209}}^1$

素因数の和:26234

約数の個数: 48

約数和(自身を含む): 61645920

約数和(自身を除く): 41202900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26209, 52418, 78627, 104836, 131045, 157254, 262090, 314508, 340717, 393135, 524180, 681434, 786270, 1022151, 1362868, 1572540, 1703585, 2044302, 3407170, 4088604, 5110755, 6814340, 10221510, 20443020]

約数ペア:

[(1, 20443020), (2, 10221510), (3, 6814340), (4, 5110755), (5, 4088604), (6, 3407170), (10, 2044302), (12, 1703585), (13, 1572540), (15, 1362868), (20, 1022151), (26, 786270), (30, 681434), (39, 524180), (52, 393135), (60, 340717), (65, 314508), (78, 262090), (130, 157254), (156, 131045), (195, 104836), (260, 78627), (390, 52418), (780, 26209)]