20503850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 20207830

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 113, 190, 191, 226, 382, 475, 565, 950, 955, 1130, 1910, 2147, 2825, 3629, 4294, 4775, 5650, 7258, 9550, 10735, 18145, 21470, 21583, 36290, 43166, 53675, 90725, 107350, 107915, 181450, 215830, 410077, 539575, 820154, 1079150, 2050385, 4100770, 10251925, 20503850]

約数ペア:

[(1, 20503850), (2, 10251925), (5, 4100770), (10, 2050385), (19, 1079150), (25, 820154), (38, 539575), (50, 410077), (95, 215830), (113, 181450), (190, 107915), (191, 107350), (226, 90725), (382, 53675), (475, 43166), (565, 36290), (950, 21583), (955, 21470), (1130, 18145), (1910, 10735), (2147, 9550), (2825, 7258), (3629, 5650), (4294, 4775)]