3986960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 80

約数和(自身を含む): 10148160

約数和(自身を除く): 6161200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 61, 76, 80, 86, 95, 122, 152, 172, 190, 215, 244, 304, 305, 344, 380, 430, 488, 610, 688, 760, 817, 860, 976, 1159, 1220, 1520, 1634, 1720, 2318, 2440, 2623, 3268, 3440, 4085, 4636, 4880, 5246, 5795, 6536, 8170, 9272, 10492, 11590, 13072, 13115, 16340, 18544, 20984, 23180, 26230, 32680, 41968, 46360, 49837, 52460, 65360, 92720, 99674, 104920, 199348, 209840, 249185, 398696, 498370, 797392, 996740, 1993480, 3986960]

約数ペア:

[(1, 3986960), (2, 1993480), (4, 996740), (5, 797392), (8, 498370), (10, 398696), (16, 249185), (19, 209840), (20, 199348), (38, 104920), (40, 99674), (43, 92720), (61, 65360), (76, 52460), (80, 49837), (86, 46360), (95, 41968), (122, 32680), (152, 26230), (172, 23180), (190, 20984), (215, 18544), (244, 16340), (304, 13115), (305, 13072), (344, 11590), (380, 10492), (430, 9272), (488, 8170), (610, 6536), (688, 5795), (760, 5246), (817, 4880), (860, 4636), (976, 4085), (1159, 3440), (1220, 3268), (1520, 2623), (1634, 2440), (1720, 2318)]