25704680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 62000640

約数和(自身を除く): 36295960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 340, 367, 412, 515, 680, 734, 824, 1030, 1468, 1751, 1835, 2060, 2936, 3502, 3670, 4120, 6239, 7004, 7340, 8755, 12478, 14008, 14680, 17510, 24956, 31195, 35020, 37801, 49912, 62390, 70040, 75602, 124780, 151204, 189005, 249560, 302408, 378010, 642617, 756020, 1285234, 1512040, 2570468, 3213085, 5140936, 6426170, 12852340, 25704680]

約数ペア:

[(1, 25704680), (2, 12852340), (4, 6426170), (5, 5140936), (8, 3213085), (10, 2570468), (17, 1512040), (20, 1285234), (34, 756020), (40, 642617), (68, 378010), (85, 302408), (103, 249560), (136, 189005), (170, 151204), (206, 124780), (340, 75602), (367, 70040), (412, 62390), (515, 49912), (680, 37801), (734, 35020), (824, 31195), (1030, 24956), (1468, 17510), (1751, 14680), (1835, 14008), (2060, 12478), (2936, 8755), (3502, 7340), (3670, 7004), (4120, 6239)]