1231760

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 40

約数和(自身を含む): 2912760

約数和(自身を除く): 1681000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 173, 178, 346, 356, 445, 692, 712, 865, 890, 1384, 1424, 1730, 1780, 2768, 3460, 3560, 6920, 7120, 13840, 15397, 30794, 61588, 76985, 123176, 153970, 246352, 307940, 615880, 1231760]

約数ペア:

[(1, 1231760), (2, 615880), (4, 307940), (5, 246352), (8, 153970), (10, 123176), (16, 76985), (20, 61588), (40, 30794), (80, 15397), (89, 13840), (173, 7120), (178, 6920), (346, 3560), (356, 3460), (445, 2768), (692, 1780), (712, 1730), (865, 1424), (890, 1384)]