201871640

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{13177}}^1$

素因数の和:13571

約数の個数: 32

約数和(自身を含む): 455431680

約数和(自身を除く): 253560040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 7660, 13177, 15320, 26354, 52708, 65885, 105416, 131770, 263540, 527080, 5046791, 10093582, 20187164, 25233955, 40374328, 50467910, 100935820, 201871640]

約数ペア:

[(1, 201871640), (2, 100935820), (4, 50467910), (5, 40374328), (8, 25233955), (10, 20187164), (20, 10093582), (40, 5046791), (383, 527080), (766, 263540), (1532, 131770), (1915, 105416), (3064, 65885), (3830, 52708), (7660, 26354), (13177, 15320)]