19123900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 54

約数和(自身を含む): 43096200

約数和(自身を除く): 23972300

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 199, 310, 398, 620, 775, 796, 961, 995, 1550, 1922, 1990, 3100, 3844, 3980, 4805, 4975, 6169, 9610, 9950, 12338, 19220, 19900, 24025, 24676, 30845, 48050, 61690, 96100, 123380, 154225, 191239, 308450, 382478, 616900, 764956, 956195, 1912390, 3824780, 4780975, 9561950, 19123900]

約数ペア:

[(1, 19123900), (2, 9561950), (4, 4780975), (5, 3824780), (10, 1912390), (20, 956195), (25, 764956), (31, 616900), (50, 382478), (62, 308450), (100, 191239), (124, 154225), (155, 123380), (199, 96100), (310, 61690), (398, 48050), (620, 30845), (775, 24676), (796, 24025), (961, 19900), (995, 19220), (1550, 12338), (1922, 9950), (1990, 9610), (3100, 6169), (3844, 4975), (3980, 4805)]