217872023140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4751}}^1\times {\mathrm{25763}}^1$

素因数の和:30612

約数の個数: 48

約数和(自身を含む): 462787395840

約数和(自身を除く): 244915372700

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4751, 9502, 19004, 23755, 25763, 47510, 51526, 95020, 103052, 128815, 257630, 422839, 515260, 845678, 1691356, 2114195, 2292907, 4228390, 4585814, 8456780, 9171628, 11464535, 22929070, 45858140, 122400013, 244800026, 489600052, 612000065, 1224000130, 2448000260, 10893601157, 21787202314, 43574404628, 54468005785, 108936011570, 217872023140]

約数ペア:

[(1, 217872023140), (2, 108936011570), (4, 54468005785), (5, 43574404628), (10, 21787202314), (20, 10893601157), (89, 2448000260), (178, 1224000130), (356, 612000065), (445, 489600052), (890, 244800026), (1780, 122400013), (4751, 45858140), (9502, 22929070), (19004, 11464535), (23755, 9171628), (25763, 8456780), (47510, 4585814), (51526, 4228390), (95020, 2292907), (103052, 2114195), (128815, 1691356), (257630, 845678), (422839, 515260)]