18367375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:244

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 6792305

約数列:

[1, 5, 13, 25, 65, 89, 125, 127, 325, 445, 635, 1157, 1625, 1651, 2225, 3175, 5785, 8255, 11125, 11303, 15875, 28925, 41275, 56515, 144625, 146939, 206375, 282575, 734695, 1412875, 3673475, 18367375]

約数ペア:

[(1, 18367375), (5, 3673475), (13, 1412875), (25, 734695), (65, 282575), (89, 206375), (125, 146939), (127, 144625), (325, 56515), (445, 41275), (635, 28925), (1157, 15875), (1625, 11303), (1651, 11125), (2225, 8255), (3175, 5785)]