201663625

素因数分解:

$5^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 274594320

約数和(自身を除く): 72930695

約数列:

[1, 5, 19, 25, 41, 95, 109, 125, 205, 361, 475, 545, 779, 1025, 1805, 2071, 2375, 2725, 3895, 4469, 5125, 9025, 10355, 13625, 14801, 19475, 22345, 39349, 45125, 51775, 74005, 84911, 97375, 111725, 196745, 258875, 370025, 424555, 558625, 983725, 1613309, 1850125, 2122775, 4918625, 8066545, 10613875, 40332725, 201663625]

約数ペア:

[(1, 201663625), (5, 40332725), (19, 10613875), (25, 8066545), (41, 4918625), (95, 2122775), (109, 1850125), (125, 1613309), (205, 983725), (361, 558625), (475, 424555), (545, 370025), (779, 258875), (1025, 196745), (1805, 111725), (2071, 97375), (2375, 84911), (2725, 74005), (3895, 51775), (4469, 45125), (5125, 39349), (9025, 22345), (10355, 19475), (13625, 14801)]