65171820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{155171}}^1$

素因数の和:155190

約数の個数: 48

約数和(自身を含む): 208551168

約数和(自身を除く): 143379348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 155171, 310342, 465513, 620684, 775855, 931026, 1086197, 1551710, 1862052, 2172394, 2327565, 3103420, 3258591, 4344788, 4655130, 5430985, 6517182, 9310260, 10861970, 13034364, 16292955, 21723940, 32585910, 65171820]

約数ペア:

[(1, 65171820), (2, 32585910), (3, 21723940), (4, 16292955), (5, 13034364), (6, 10861970), (7, 9310260), (10, 6517182), (12, 5430985), (14, 4655130), (15, 4344788), (20, 3258591), (21, 3103420), (28, 2327565), (30, 2172394), (35, 1862052), (42, 1551710), (60, 1086197), (70, 931026), (84, 775855), (105, 620684), (140, 465513), (210, 310342), (420, 155171)]