127707640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 293529600

約数和(自身を除く): 165821960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 139, 206, 223, 278, 412, 446, 515, 556, 695, 824, 892, 1030, 1112, 1115, 1390, 1784, 2060, 2230, 2780, 4120, 4460, 5560, 8920, 14317, 22969, 28634, 30997, 45938, 57268, 61994, 71585, 91876, 114536, 114845, 123988, 143170, 154985, 183752, 229690, 247976, 286340, 309970, 459380, 572680, 619940, 918760, 1239880, 3192691, 6385382, 12770764, 15963455, 25541528, 31926910, 63853820, 127707640]

約数ペア:

[(1, 127707640), (2, 63853820), (4, 31926910), (5, 25541528), (8, 15963455), (10, 12770764), (20, 6385382), (40, 3192691), (103, 1239880), (139, 918760), (206, 619940), (223, 572680), (278, 459380), (412, 309970), (446, 286340), (515, 247976), (556, 229690), (695, 183752), (824, 154985), (892, 143170), (1030, 123988), (1112, 114845), (1115, 114536), (1390, 91876), (1784, 71585), (2060, 61994), (2230, 57268), (2780, 45938), (4120, 30997), (4460, 28634), (5560, 22969), (8920, 14317)]