331312280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{637139}}^1$

素因数の和:637163

約数の個数: 32

約数和(自身を含む): 802796400

約数和(自身を除く): 471484120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 637139, 1274278, 2548556, 3185695, 5097112, 6371390, 8282807, 12742780, 16565614, 25485560, 33131228, 41414035, 66262456, 82828070, 165656140, 331312280]

約数ペア:

[(1, 331312280), (2, 165656140), (4, 82828070), (5, 66262456), (8, 41414035), (10, 33131228), (13, 25485560), (20, 16565614), (26, 12742780), (40, 8282807), (52, 6371390), (65, 5097112), (104, 3185695), (130, 2548556), (260, 1274278), (520, 637139)]