19836800

素因数分解:

$2^7\times 5^2\times {\mathrm{6199}}^1$

素因数の和:6223

約数の個数: 48

約数和(自身を含む): 49011000

約数和(自身を除く): 29174200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6199, 12398, 24796, 30995, 49592, 61990, 99184, 123980, 154975, 198368, 247960, 309950, 396736, 495920, 619900, 793472, 991840, 1239800, 1983680, 2479600, 3967360, 4959200, 9918400, 19836800]

約数ペア:

[(1, 19836800), (2, 9918400), (4, 4959200), (5, 3967360), (8, 2479600), (10, 1983680), (16, 1239800), (20, 991840), (25, 793472), (32, 619900), (40, 495920), (50, 396736), (64, 309950), (80, 247960), (100, 198368), (128, 154975), (160, 123980), (200, 99184), (320, 61990), (400, 49592), (640, 30995), (800, 24796), (1600, 12398), (3200, 6199)]