31564520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{601}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 77369040

約数和(自身を除く): 45804520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 601, 808, 1010, 1202, 1313, 2020, 2404, 2626, 3005, 4040, 4808, 5252, 6010, 6565, 7813, 10504, 12020, 13130, 15626, 24040, 26260, 31252, 39065, 52520, 60701, 62504, 78130, 121402, 156260, 242804, 303505, 312520, 485608, 607010, 789113, 1214020, 1578226, 2428040, 3156452, 3945565, 6312904, 7891130, 15782260, 31564520]

約数ペア:

[(1, 31564520), (2, 15782260), (4, 7891130), (5, 6312904), (8, 3945565), (10, 3156452), (13, 2428040), (20, 1578226), (26, 1214020), (40, 789113), (52, 607010), (65, 485608), (101, 312520), (104, 303505), (130, 242804), (202, 156260), (260, 121402), (404, 78130), (505, 62504), (520, 60701), (601, 52520), (808, 39065), (1010, 31252), (1202, 26260), (1313, 24040), (2020, 15626), (2404, 13130), (2626, 12020), (3005, 10504), (4040, 7813), (4808, 6565), (5252, 6010)]