81539760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339749}}^1$

素因数の和:339765

約数の個数: 40

約数和(自身を含む): 252774000

約数和(自身を除く): 171234240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339749, 679498, 1019247, 1358996, 1698745, 2038494, 2717992, 3397490, 4076988, 5096235, 5435984, 6794980, 8153976, 10192470, 13589960, 16307952, 20384940, 27179920, 40769880, 81539760]

約数ペア:

[(1, 81539760), (2, 40769880), (3, 27179920), (4, 20384940), (5, 16307952), (6, 13589960), (8, 10192470), (10, 8153976), (12, 6794980), (15, 5435984), (16, 5096235), (20, 4076988), (24, 3397490), (30, 2717992), (40, 2038494), (48, 1698745), (60, 1358996), (80, 1019247), (120, 679498), (240, 339749)]