4787940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 13507200

約数和(自身を除く): 8719260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 401, 597, 796, 802, 995, 1194, 1203, 1604, 1990, 2005, 2388, 2406, 2985, 3980, 4010, 4812, 5970, 6015, 8020, 11940, 12030, 24060, 79799, 159598, 239397, 319196, 398995, 478794, 797990, 957588, 1196985, 1595980, 2393970, 4787940]

約数ペア:

[(1, 4787940), (2, 2393970), (3, 1595980), (4, 1196985), (5, 957588), (6, 797990), (10, 478794), (12, 398995), (15, 319196), (20, 239397), (30, 159598), (60, 79799), (199, 24060), (398, 12030), (401, 11940), (597, 8020), (796, 6015), (802, 5970), (995, 4812), (1194, 4010), (1203, 3980), (1604, 2985), (1990, 2406), (2005, 2388)]