16770740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 41607720

約数和(自身を除く): 24836980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 157, 196, 218, 245, 314, 436, 490, 545, 628, 763, 785, 980, 1090, 1099, 1526, 1570, 2180, 2198, 3052, 3140, 3815, 4396, 5341, 5495, 7630, 7693, 10682, 10990, 15260, 15386, 17113, 21364, 21980, 26705, 30772, 34226, 38465, 53410, 68452, 76930, 85565, 106820, 119791, 153860, 171130, 239582, 342260, 479164, 598955, 838537, 1197910, 1677074, 2395820, 3354148, 4192685, 8385370, 16770740]

約数ペア:

[(1, 16770740), (2, 8385370), (4, 4192685), (5, 3354148), (7, 2395820), (10, 1677074), (14, 1197910), (20, 838537), (28, 598955), (35, 479164), (49, 342260), (70, 239582), (98, 171130), (109, 153860), (140, 119791), (157, 106820), (196, 85565), (218, 76930), (245, 68452), (314, 53410), (436, 38465), (490, 34226), (545, 30772), (628, 26705), (763, 21980), (785, 21364), (980, 17113), (1090, 15386), (1099, 15260), (1526, 10990), (1570, 10682), (2180, 7693), (2198, 7630), (3052, 5495), (3140, 5341), (3815, 4396)]