204531220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2309}}^1$

素因数の和:2464

約数の個数: 48

約数和(自身を含む): 443963520

約数和(自身を除く): 239432300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 103, 172, 206, 215, 412, 430, 515, 860, 1030, 2060, 2309, 4429, 4618, 8858, 9236, 11545, 17716, 22145, 23090, 44290, 46180, 88580, 99287, 198574, 237827, 397148, 475654, 496435, 951308, 992870, 1189135, 1985740, 2378270, 4756540, 10226561, 20453122, 40906244, 51132805, 102265610, 204531220]

約数ペア:

[(1, 204531220), (2, 102265610), (4, 51132805), (5, 40906244), (10, 20453122), (20, 10226561), (43, 4756540), (86, 2378270), (103, 1985740), (172, 1189135), (206, 992870), (215, 951308), (412, 496435), (430, 475654), (515, 397148), (860, 237827), (1030, 198574), (2060, 99287), (2309, 88580), (4429, 46180), (4618, 44290), (8858, 23090), (9236, 22145), (11545, 17716)]