19875712

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5009}}^1$

素因数の和:5054

約数の個数: 32

約数和(自身を含む): 40881600

約数和(自身を除く): 21005888

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5009, 10018, 20036, 40072, 80144, 155279, 160288, 310558, 320576, 621116, 641152, 1242232, 2484464, 4968928, 9937856, 19875712]

約数ペア:

[(1, 19875712), (2, 9937856), (4, 4968928), (8, 2484464), (16, 1242232), (31, 641152), (32, 621116), (62, 320576), (64, 310558), (124, 160288), (128, 155279), (248, 80144), (496, 40072), (992, 20036), (1984, 10018), (3968, 5009)]