21438960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89329}}^1$

素因数の和:89345

約数の個数: 40

約数和(自身を含む): 66461520

約数和(自身を除く): 45022560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89329, 178658, 267987, 357316, 446645, 535974, 714632, 893290, 1071948, 1339935, 1429264, 1786580, 2143896, 2679870, 3573160, 4287792, 5359740, 7146320, 10719480, 21438960]

約数ペア:

[(1, 21438960), (2, 10719480), (3, 7146320), (4, 5359740), (5, 4287792), (6, 3573160), (8, 2679870), (10, 2143896), (12, 1786580), (15, 1429264), (16, 1339935), (20, 1071948), (24, 893290), (30, 714632), (40, 535974), (48, 446645), (60, 357316), (80, 267987), (120, 178658), (240, 89329)]