1902440

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 4320000

約数和(自身を除く): 2417560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 239, 398, 478, 796, 956, 995, 1195, 1592, 1912, 1990, 2390, 3980, 4780, 7960, 9560, 47561, 95122, 190244, 237805, 380488, 475610, 951220, 1902440]

約数ペア:

[(1, 1902440), (2, 951220), (4, 475610), (5, 380488), (8, 237805), (10, 190244), (20, 95122), (40, 47561), (199, 9560), (239, 7960), (398, 4780), (478, 3980), (796, 2390), (956, 1990), (995, 1912), (1195, 1592)]