20001782720

素因数分解:

$2^6\times 5^1\times {\mathrm{1637}}^1\times {\mathrm{38183}}^1$

素因数の和:39837

約数の個数: 56

約数和(自身を含む): 47659588704

約数和(自身を除く): 27657805984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1637, 3274, 6548, 8185, 13096, 16370, 26192, 32740, 38183, 52384, 65480, 76366, 104768, 130960, 152732, 190915, 261920, 305464, 381830, 523840, 610928, 763660, 1221856, 1527320, 2443712, 3054640, 6109280, 12218560, 62505571, 125011142, 250022284, 312527855, 500044568, 625055710, 1000089136, 1250111420, 2000178272, 2500222840, 4000356544, 5000445680, 10000891360, 20001782720]

約数ペア:

[(1, 20001782720), (2, 10000891360), (4, 5000445680), (5, 4000356544), (8, 2500222840), (10, 2000178272), (16, 1250111420), (20, 1000089136), (32, 625055710), (40, 500044568), (64, 312527855), (80, 250022284), (160, 125011142), (320, 62505571), (1637, 12218560), (3274, 6109280), (6548, 3054640), (8185, 2443712), (13096, 1527320), (16370, 1221856), (26192, 763660), (32740, 610928), (38183, 523840), (52384, 381830), (65480, 305464), (76366, 261920), (104768, 190915), (130960, 152732)]