309387140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{2381}}^1$

素因数の和:2552

約数の個数: 48

約数和(自身を含む): 666293040

約数和(自身を除く): 356905900

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 730, 890, 1460, 1780, 2381, 4762, 6497, 9524, 11905, 12994, 23810, 25988, 32485, 47620, 64970, 129940, 173813, 211909, 347626, 423818, 695252, 847636, 869065, 1059545, 1738130, 2119090, 3476260, 4238180, 15469357, 30938714, 61877428, 77346785, 154693570, 309387140]

約数ペア:

[(1, 309387140), (2, 154693570), (4, 77346785), (5, 61877428), (10, 30938714), (20, 15469357), (73, 4238180), (89, 3476260), (146, 2119090), (178, 1738130), (292, 1059545), (356, 869065), (365, 847636), (445, 695252), (730, 423818), (890, 347626), (1460, 211909), (1780, 173813), (2381, 129940), (4762, 64970), (6497, 47620), (9524, 32485), (11905, 25988), (12994, 23810)]