20295560

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5701}}^1$

素因数の和:5801

約数の個数: 32

約数和(自身を含む): 46186200

約数和(自身を除く): 25890640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5701, 11402, 22804, 28505, 45608, 57010, 114020, 228040, 507389, 1014778, 2029556, 2536945, 4059112, 5073890, 10147780, 20295560]

約数ペア:

[(1, 20295560), (2, 10147780), (4, 5073890), (5, 4059112), (8, 2536945), (10, 2029556), (20, 1014778), (40, 507389), (89, 228040), (178, 114020), (356, 57010), (445, 45608), (712, 28505), (890, 22804), (1780, 11402), (3560, 5701)]