20737550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 20509810

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 83, 95, 166, 190, 263, 415, 475, 526, 830, 950, 1315, 1577, 2075, 2630, 3154, 4150, 4997, 6575, 7885, 9994, 13150, 15770, 21829, 24985, 39425, 43658, 49970, 78850, 109145, 124925, 218290, 249850, 414751, 545725, 829502, 1091450, 2073755, 4147510, 10368775, 20737550]

約数ペア:

[(1, 20737550), (2, 10368775), (5, 4147510), (10, 2073755), (19, 1091450), (25, 829502), (38, 545725), (50, 414751), (83, 249850), (95, 218290), (166, 124925), (190, 109145), (263, 78850), (415, 49970), (475, 43658), (526, 39425), (830, 24985), (950, 21829), (1315, 15770), (1577, 13150), (2075, 9994), (2630, 7885), (3154, 6575), (4150, 4997)]