20001760

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{839}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 27626240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 839, 1192, 1490, 1678, 2384, 2980, 3356, 4195, 4768, 5960, 6712, 8390, 11920, 13424, 16780, 23840, 26848, 33560, 67120, 125011, 134240, 250022, 500044, 625055, 1000088, 1250110, 2000176, 2500220, 4000352, 5000440, 10000880, 20001760]

約数ペア:

[(1, 20001760), (2, 10000880), (4, 5000440), (5, 4000352), (8, 2500220), (10, 2000176), (16, 1250110), (20, 1000088), (32, 625055), (40, 500044), (80, 250022), (149, 134240), (160, 125011), (298, 67120), (596, 33560), (745, 26848), (839, 23840), (1192, 16780), (1490, 13424), (1678, 11920), (2384, 8390), (2980, 6712), (3356, 5960), (4195, 4768)]