28918280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7019}}^1$

素因数の和:7133

約数の個数: 32

約数和(自身を含む): 65707200

約数和(自身を除く): 36788920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 7019, 14038, 28076, 35095, 56152, 70190, 140380, 280760, 722957, 1445914, 2891828, 3614785, 5783656, 7229570, 14459140, 28918280]

約数ペア:

[(1, 28918280), (2, 14459140), (4, 7229570), (5, 5783656), (8, 3614785), (10, 2891828), (20, 1445914), (40, 722957), (103, 280760), (206, 140380), (412, 70190), (515, 56152), (824, 35095), (1030, 28076), (2060, 14038), (4120, 7019)]