21972560

素因数分解:

$2^4\times 5^1\times {\mathrm{457}}^1\times {\mathrm{601}}^1$

素因数の和:1071

約数の個数: 40

約数和(自身を含む): 51283176

約数和(自身を除く): 29310616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 457, 601, 914, 1202, 1828, 2285, 2404, 3005, 3656, 4570, 4808, 6010, 7312, 9140, 9616, 12020, 18280, 24040, 36560, 48080, 274657, 549314, 1098628, 1373285, 2197256, 2746570, 4394512, 5493140, 10986280, 21972560]

約数ペア:

[(1, 21972560), (2, 10986280), (4, 5493140), (5, 4394512), (8, 2746570), (10, 2197256), (16, 1373285), (20, 1098628), (40, 549314), (80, 274657), (457, 48080), (601, 36560), (914, 24040), (1202, 18280), (1828, 12020), (2285, 9616), (2404, 9140), (3005, 7312), (3656, 6010), (4570, 4808)]