20723880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{463}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 62472960

約数和(自身を除く): 41749080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 463, 746, 926, 1119, 1389, 1492, 1852, 1865, 2238, 2315, 2778, 2984, 3704, 3730, 4476, 4630, 5556, 5595, 6945, 7460, 8952, 9260, 11112, 11190, 13890, 14920, 18520, 22380, 27780, 44760, 55560, 172699, 345398, 518097, 690796, 863495, 1036194, 1381592, 1726990, 2072388, 2590485, 3453980, 4144776, 5180970, 6907960, 10361940, 20723880]

約数ペア:

[(1, 20723880), (2, 10361940), (3, 6907960), (4, 5180970), (5, 4144776), (6, 3453980), (8, 2590485), (10, 2072388), (12, 1726990), (15, 1381592), (20, 1036194), (24, 863495), (30, 690796), (40, 518097), (60, 345398), (120, 172699), (373, 55560), (463, 44760), (746, 27780), (926, 22380), (1119, 18520), (1389, 14920), (1492, 13890), (1852, 11190), (1865, 11112), (2238, 9260), (2315, 8952), (2778, 7460), (2984, 6945), (3704, 5595), (3730, 5556), (4476, 4630)]