309520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 743256

約数和(自身を除く): 433736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 73, 80, 106, 146, 212, 265, 292, 365, 424, 530, 584, 730, 848, 1060, 1168, 1460, 2120, 2920, 3869, 4240, 5840, 7738, 15476, 19345, 30952, 38690, 61904, 77380, 154760, 309520]

約数ペア:

[(1, 309520), (2, 154760), (4, 77380), (5, 61904), (8, 38690), (10, 30952), (16, 19345), (20, 15476), (40, 7738), (53, 5840), (73, 4240), (80, 3869), (106, 2920), (146, 2120), (212, 1460), (265, 1168), (292, 1060), (365, 848), (424, 730), (530, 584)]