1640185860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{137369}}^1$

素因数の和:137580

約数の個数: 48

約数和(自身を含む): 4615632000

約数和(自身を除く): 2975446140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1990, 2388, 2985, 3980, 5970, 11940, 137369, 274738, 412107, 549476, 686845, 824214, 1373690, 1648428, 2060535, 2747380, 4121070, 8242140, 27336431, 54672862, 82009293, 109345724, 136682155, 164018586, 273364310, 328037172, 410046465, 546728620, 820092930, 1640185860]

約数ペア:

[(1, 1640185860), (2, 820092930), (3, 546728620), (4, 410046465), (5, 328037172), (6, 273364310), (10, 164018586), (12, 136682155), (15, 109345724), (20, 82009293), (30, 54672862), (60, 27336431), (199, 8242140), (398, 4121070), (597, 2747380), (796, 2060535), (995, 1648428), (1194, 1373690), (1990, 824214), (2388, 686845), (2985, 549476), (3980, 412107), (5970, 274738), (11940, 137369)]