19873120

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4283}}^1$

素因数の和:4327

約数の個数: 48

約数和(自身を含む): 48580560

約数和(自身を除く): 28707440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4283, 4640, 8566, 17132, 21415, 34264, 42830, 68528, 85660, 124207, 137056, 171320, 248414, 342640, 496828, 621035, 685280, 993656, 1242070, 1987312, 2484140, 3974624, 4968280, 9936560, 19873120]

約数ペア:

[(1, 19873120), (2, 9936560), (4, 4968280), (5, 3974624), (8, 2484140), (10, 1987312), (16, 1242070), (20, 993656), (29, 685280), (32, 621035), (40, 496828), (58, 342640), (80, 248414), (116, 171320), (145, 137056), (160, 124207), (232, 85660), (290, 68528), (464, 42830), (580, 34264), (928, 21415), (1160, 17132), (2320, 8566), (4283, 4640)]