388430020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{5059}}^1$

素因数の和:5428

約数の個数: 48

約数和(自身を含む): 892584000

約数和(自身を除く): 504153980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1396, 1745, 3490, 3839, 5059, 6980, 7678, 10118, 15356, 19195, 20236, 25295, 38390, 50590, 55649, 76780, 101180, 111298, 222596, 278245, 556490, 1112980, 1765591, 3531182, 7062364, 8827955, 17655910, 19421501, 35311820, 38843002, 77686004, 97107505, 194215010, 388430020]

約数ペア:

[(1, 388430020), (2, 194215010), (4, 97107505), (5, 77686004), (10, 38843002), (11, 35311820), (20, 19421501), (22, 17655910), (44, 8827955), (55, 7062364), (110, 3531182), (220, 1765591), (349, 1112980), (698, 556490), (1396, 278245), (1745, 222596), (3490, 111298), (3839, 101180), (5059, 76780), (6980, 55649), (7678, 50590), (10118, 38390), (15356, 25295), (19195, 20236)]