154896020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1\times {\mathrm{449}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 333849600

約数和(自身を除く): 178953580

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 367, 449, 470, 734, 898, 940, 1468, 1796, 1835, 2245, 3670, 4490, 7340, 8980, 17249, 21103, 34498, 42206, 68996, 84412, 86245, 105515, 164783, 172490, 211030, 329566, 344980, 422060, 659132, 823915, 1647830, 3295660, 7744801, 15489602, 30979204, 38724005, 77448010, 154896020]

約数ペア:

[(1, 154896020), (2, 77448010), (4, 38724005), (5, 30979204), (10, 15489602), (20, 7744801), (47, 3295660), (94, 1647830), (188, 823915), (235, 659132), (367, 422060), (449, 344980), (470, 329566), (734, 211030), (898, 172490), (940, 164783), (1468, 105515), (1796, 86245), (1835, 84412), (2245, 68996), (3670, 42206), (4490, 34498), (7340, 21103), (8980, 17249)]