289300240

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{7247}}^1$

素因数の和:7759

約数の個数: 40

約数和(自身を含む): 674064000

約数和(自身を除く): 384763760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2495, 3992, 4990, 7247, 7984, 9980, 14494, 19960, 28988, 36235, 39920, 57976, 72470, 115952, 144940, 289880, 579760, 3616253, 7232506, 14465012, 18081265, 28930024, 36162530, 57860048, 72325060, 144650120, 289300240]

約数ペア:

[(1, 289300240), (2, 144650120), (4, 72325060), (5, 57860048), (8, 36162530), (10, 28930024), (16, 18081265), (20, 14465012), (40, 7232506), (80, 3616253), (499, 579760), (998, 289880), (1996, 144940), (2495, 115952), (3992, 72470), (4990, 57976), (7247, 39920), (7984, 36235), (9980, 28988), (14494, 19960)]