19280600

素因数分解:

$2^3\times 5^2\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 45198000

約数和(自身を除く): 25917400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 149, 200, 298, 596, 647, 745, 1192, 1294, 1490, 2588, 2980, 3235, 3725, 5176, 5960, 6470, 7450, 12940, 14900, 16175, 25880, 29800, 32350, 64700, 96403, 129400, 192806, 385612, 482015, 771224, 964030, 1928060, 2410075, 3856120, 4820150, 9640300, 19280600]

約数ペア:

[(1, 19280600), (2, 9640300), (4, 4820150), (5, 3856120), (8, 2410075), (10, 1928060), (20, 964030), (25, 771224), (40, 482015), (50, 385612), (100, 192806), (149, 129400), (200, 96403), (298, 64700), (596, 32350), (647, 29800), (745, 25880), (1192, 16175), (1294, 14900), (1490, 12940), (2588, 7450), (2980, 6470), (3235, 5960), (3725, 5176)]