75364780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 161441280

約数和(自身を除く): 86076500

約数列:

[1, 2, 4, 5, 10, 20, 109, 181, 191, 218, 362, 382, 436, 545, 724, 764, 905, 955, 1090, 1810, 1910, 2180, 3620, 3820, 19729, 20819, 34571, 39458, 41638, 69142, 78916, 83276, 98645, 104095, 138284, 172855, 197290, 208190, 345710, 394580, 416380, 691420, 3768239, 7536478, 15072956, 18841195, 37682390, 75364780]

約数ペア:

[(1, 75364780), (2, 37682390), (4, 18841195), (5, 15072956), (10, 7536478), (20, 3768239), (109, 691420), (181, 416380), (191, 394580), (218, 345710), (362, 208190), (382, 197290), (436, 172855), (545, 138284), (724, 104095), (764, 98645), (905, 83276), (955, 78916), (1090, 69142), (1810, 41638), (1910, 39458), (2180, 34571), (3620, 20819), (3820, 19729)]