18837920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5119}}^1$

素因数の和:5157

約数の個数: 48

約数和(自身を含む): 46448640

約数和(自身を除く): 27610720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5119, 10238, 20476, 25595, 40952, 51190, 81904, 102380, 117737, 163808, 204760, 235474, 409520, 470948, 588685, 819040, 941896, 1177370, 1883792, 2354740, 3767584, 4709480, 9418960, 18837920]

約数ペア:

[(1, 18837920), (2, 9418960), (4, 4709480), (5, 3767584), (8, 2354740), (10, 1883792), (16, 1177370), (20, 941896), (23, 819040), (32, 588685), (40, 470948), (46, 409520), (80, 235474), (92, 204760), (115, 163808), (160, 117737), (184, 102380), (230, 81904), (368, 51190), (460, 40952), (736, 25595), (920, 20476), (1840, 10238), (3680, 5119)]