245001640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{3001}}^1$

素因数の和:3182

約数の個数: 64

約数和(自身を含む): 597638160

約数和(自身を除く): 352636520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 2041, 3001, 3140, 4082, 6002, 6280, 8164, 10205, 12004, 15005, 16328, 20410, 24008, 30010, 39013, 40820, 60020, 78026, 81640, 120040, 156052, 195065, 312104, 390130, 471157, 780260, 942314, 1560520, 1884628, 2355785, 3769256, 4711570, 6125041, 9423140, 12250082, 18846280, 24500164, 30625205, 49000328, 61250410, 122500820, 245001640]

約数ペア:

[(1, 245001640), (2, 122500820), (4, 61250410), (5, 49000328), (8, 30625205), (10, 24500164), (13, 18846280), (20, 12250082), (26, 9423140), (40, 6125041), (52, 4711570), (65, 3769256), (104, 2355785), (130, 1884628), (157, 1560520), (260, 942314), (314, 780260), (520, 471157), (628, 390130), (785, 312104), (1256, 195065), (1570, 156052), (2041, 120040), (3001, 81640), (3140, 78026), (4082, 60020), (6002, 40820), (6280, 39013), (8164, 30010), (10205, 24008), (12004, 20410), (15005, 16328)]