2153440

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 5222448

約数和(自身を除く): 3069008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 313, 344, 430, 626, 688, 860, 1252, 1376, 1565, 1720, 2504, 3130, 3440, 5008, 6260, 6880, 10016, 12520, 13459, 25040, 26918, 50080, 53836, 67295, 107672, 134590, 215344, 269180, 430688, 538360, 1076720, 2153440]

約数ペア:

[(1, 2153440), (2, 1076720), (4, 538360), (5, 430688), (8, 269180), (10, 215344), (16, 134590), (20, 107672), (32, 67295), (40, 53836), (43, 50080), (80, 26918), (86, 25040), (160, 13459), (172, 12520), (215, 10016), (313, 6880), (344, 6260), (430, 5008), (626, 3440), (688, 3130), (860, 2504), (1252, 1720), (1376, 1565)]