28791500

素因数分解:

$2^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 63685440

約数和(自身を除く): 34893940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 178, 250, 356, 445, 500, 647, 890, 1294, 1780, 2225, 2588, 3235, 4450, 6470, 8900, 11125, 12940, 16175, 22250, 32350, 44500, 57583, 64700, 80875, 115166, 161750, 230332, 287915, 323500, 575830, 1151660, 1439575, 2879150, 5758300, 7197875, 14395750, 28791500]

約数ペア:

[(1, 28791500), (2, 14395750), (4, 7197875), (5, 5758300), (10, 2879150), (20, 1439575), (25, 1151660), (50, 575830), (89, 323500), (100, 287915), (125, 230332), (178, 161750), (250, 115166), (356, 80875), (445, 64700), (500, 57583), (647, 44500), (890, 32350), (1294, 22250), (1780, 16175), (2225, 12940), (2588, 11125), (3235, 8900), (4450, 6470)]