17932720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 46059552

約数和(自身を除く): 28126832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 401, 430, 520, 559, 688, 802, 860, 1040, 1118, 1604, 1720, 2005, 2236, 2795, 3208, 3440, 4010, 4472, 5213, 5590, 6416, 8020, 8944, 10426, 11180, 16040, 17243, 20852, 22360, 26065, 32080, 34486, 41704, 44720, 52130, 68972, 83408, 86215, 104260, 137944, 172430, 208520, 224159, 275888, 344860, 417040, 448318, 689720, 896636, 1120795, 1379440, 1793272, 2241590, 3586544, 4483180, 8966360, 17932720]

約数ペア:

[(1, 17932720), (2, 8966360), (4, 4483180), (5, 3586544), (8, 2241590), (10, 1793272), (13, 1379440), (16, 1120795), (20, 896636), (26, 689720), (40, 448318), (43, 417040), (52, 344860), (65, 275888), (80, 224159), (86, 208520), (104, 172430), (130, 137944), (172, 104260), (208, 86215), (215, 83408), (260, 68972), (344, 52130), (401, 44720), (430, 41704), (520, 34486), (559, 32080), (688, 26065), (802, 22360), (860, 20852), (1040, 17243), (1118, 16040), (1604, 11180), (1720, 10426), (2005, 8944), (2236, 8020), (2795, 6416), (3208, 5590), (3440, 5213), (4010, 4472)]