51402020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 111283200

約数和(自身を除く): 59881180

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 149, 188, 235, 298, 367, 470, 596, 734, 745, 940, 1468, 1490, 1835, 2980, 3670, 7003, 7340, 14006, 17249, 28012, 34498, 35015, 54683, 68996, 70030, 86245, 109366, 140060, 172490, 218732, 273415, 344980, 546830, 1093660, 2570101, 5140202, 10280404, 12850505, 25701010, 51402020]

約数ペア:

[(1, 51402020), (2, 25701010), (4, 12850505), (5, 10280404), (10, 5140202), (20, 2570101), (47, 1093660), (94, 546830), (149, 344980), (188, 273415), (235, 218732), (298, 172490), (367, 140060), (470, 109366), (596, 86245), (734, 70030), (745, 68996), (940, 54683), (1468, 35015), (1490, 34498), (1835, 28012), (2980, 17249), (3670, 14006), (7003, 7340)]