28973060

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 63186480

約数和(自身を除く): 34213420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 397, 410, 445, 794, 820, 890, 1588, 1780, 1985, 3649, 3970, 7298, 7940, 14596, 16277, 18245, 32554, 35333, 36490, 65108, 70666, 72980, 81385, 141332, 162770, 176665, 325540, 353330, 706660, 1448653, 2897306, 5794612, 7243265, 14486530, 28973060]

約数ペア:

[(1, 28973060), (2, 14486530), (4, 7243265), (5, 5794612), (10, 2897306), (20, 1448653), (41, 706660), (82, 353330), (89, 325540), (164, 176665), (178, 162770), (205, 141332), (356, 81385), (397, 72980), (410, 70666), (445, 65108), (794, 36490), (820, 35333), (890, 32554), (1588, 18245), (1780, 16277), (1985, 14596), (3649, 7940), (3970, 7298)]