239699640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4003}}^1$

素因数の和:4516

約数の個数: 64

約数和(自身を含む): 720720000

約数和(自身を除く): 481020360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 499, 998, 1497, 1996, 2495, 2994, 3992, 4003, 4990, 5988, 7485, 8006, 9980, 11976, 12009, 14970, 16012, 19960, 20015, 24018, 29940, 32024, 40030, 48036, 59880, 60045, 80060, 96072, 120090, 160120, 240180, 480360, 1997497, 3994994, 5992491, 7989988, 9987485, 11984982, 15979976, 19974970, 23969964, 29962455, 39949940, 47939928, 59924910, 79899880, 119849820, 239699640]

約数ペア:

[(1, 239699640), (2, 119849820), (3, 79899880), (4, 59924910), (5, 47939928), (6, 39949940), (8, 29962455), (10, 23969964), (12, 19974970), (15, 15979976), (20, 11984982), (24, 9987485), (30, 7989988), (40, 5992491), (60, 3994994), (120, 1997497), (499, 480360), (998, 240180), (1497, 160120), (1996, 120090), (2495, 96072), (2994, 80060), (3992, 60045), (4003, 59880), (4990, 48036), (5988, 40030), (7485, 32024), (8006, 29940), (9980, 24018), (11976, 20015), (12009, 19960), (14970, 16012)]