19918400

素因数分解:

$2^6\times 5^2\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:292

約数の個数: 84

約数和(自身を含む): 50078640

約数和(自身を除く): 30160240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 118, 160, 200, 211, 236, 295, 320, 400, 422, 472, 590, 800, 844, 944, 1055, 1180, 1475, 1600, 1688, 1888, 2110, 2360, 2950, 3376, 3776, 4220, 4720, 5275, 5900, 6752, 8440, 9440, 10550, 11800, 12449, 13504, 16880, 18880, 21100, 23600, 24898, 33760, 42200, 47200, 49796, 62245, 67520, 84400, 94400, 99592, 124490, 168800, 199184, 248980, 311225, 337600, 398368, 497960, 622450, 796736, 995920, 1244900, 1991840, 2489800, 3983680, 4979600, 9959200, 19918400]

約数ペア:

[(1, 19918400), (2, 9959200), (4, 4979600), (5, 3983680), (8, 2489800), (10, 1991840), (16, 1244900), (20, 995920), (25, 796736), (32, 622450), (40, 497960), (50, 398368), (59, 337600), (64, 311225), (80, 248980), (100, 199184), (118, 168800), (160, 124490), (200, 99592), (211, 94400), (236, 84400), (295, 67520), (320, 62245), (400, 49796), (422, 47200), (472, 42200), (590, 33760), (800, 24898), (844, 23600), (944, 21100), (1055, 18880), (1180, 16880), (1475, 13504), (1600, 12449), (1688, 11800), (1888, 10550), (2110, 9440), (2360, 8440), (2950, 6752), (3376, 5900), (3776, 5275), (4220, 4720)]