20119080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 40533720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 431, 778, 862, 1167, 1293, 1556, 1724, 1945, 2155, 2334, 2586, 3112, 3448, 3890, 4310, 4668, 5172, 5835, 6465, 7780, 8620, 9336, 10344, 11670, 12930, 15560, 17240, 23340, 25860, 46680, 51720, 167659, 335318, 502977, 670636, 838295, 1005954, 1341272, 1676590, 2011908, 2514885, 3353180, 4023816, 5029770, 6706360, 10059540, 20119080]

約数ペア:

[(1, 20119080), (2, 10059540), (3, 6706360), (4, 5029770), (5, 4023816), (6, 3353180), (8, 2514885), (10, 2011908), (12, 1676590), (15, 1341272), (20, 1005954), (24, 838295), (30, 670636), (40, 502977), (60, 335318), (120, 167659), (389, 51720), (431, 46680), (778, 25860), (862, 23340), (1167, 17240), (1293, 15560), (1556, 12930), (1724, 11670), (1945, 10344), (2155, 9336), (2334, 8620), (2586, 7780), (3112, 6465), (3448, 5835), (3890, 5172), (4310, 4668)]