18573920

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4003}}^1$

素因数の和:4047

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 26831440

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, 4003, 4640, 8006, 16012, 20015, 32024, 40030, 64048, 80060, 116087, 128096, 160120, 232174, 320240, 464348, 580435, 640480, 928696, 1160870, 1857392, 2321740, 3714784, 4643480, 9286960, 18573920]

約数ペア:

[(1, 18573920), (2, 9286960), (4, 4643480), (5, 3714784), (8, 2321740), (10, 1857392), (16, 1160870), (20, 928696), (29, 640480), (32, 580435), (40, 464348), (58, 320240), (80, 232174), (116, 160120), (145, 128096), (160, 116087), (232, 80060), (290, 64048), (464, 40030), (580, 32024), (928, 20015), (1160, 16012), (2320, 8006), (4003, 4640)]