19657450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 38497536

約数和(自身を除く): 18840086

約数列:

[1, 2, 5, 10, 25, 41, 43, 50, 82, 86, 205, 215, 223, 410, 430, 446, 1025, 1075, 1115, 1763, 2050, 2150, 2230, 3526, 5575, 8815, 9143, 9589, 11150, 17630, 18286, 19178, 44075, 45715, 47945, 88150, 91430, 95890, 228575, 239725, 393149, 457150, 479450, 786298, 1965745, 3931490, 9828725, 19657450]

約数ペア:

[(1, 19657450), (2, 9828725), (5, 3931490), (10, 1965745), (25, 786298), (41, 479450), (43, 457150), (50, 393149), (82, 239725), (86, 228575), (205, 95890), (215, 91430), (223, 88150), (410, 47945), (430, 45715), (446, 44075), (1025, 19178), (1075, 18286), (1115, 17630), (1763, 11150), (2050, 9589), (2150, 9143), (2230, 8815), (3526, 5575)]