19619760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81749}}^1$

素因数の和:81765

約数の個数: 40

約数和(自身を含む): 60822000

約数和(自身を除く): 41202240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81749, 163498, 245247, 326996, 408745, 490494, 653992, 817490, 980988, 1226235, 1307984, 1634980, 1961976, 2452470, 3269960, 3923952, 4904940, 6539920, 9809880, 19619760]

約数ペア:

[(1, 19619760), (2, 9809880), (3, 6539920), (4, 4904940), (5, 3923952), (6, 3269960), (8, 2452470), (10, 1961976), (12, 1634980), (15, 1307984), (16, 1226235), (20, 980988), (24, 817490), (30, 653992), (40, 490494), (48, 408745), (60, 326996), (80, 245247), (120, 163498), (240, 81749)]