156721240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{163}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 391169520

約数和(自身を除く): 234448280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 163, 172, 215, 260, 326, 344, 430, 520, 559, 652, 815, 860, 1118, 1304, 1630, 1720, 1849, 2119, 2236, 2795, 3260, 3698, 4238, 4472, 5590, 6520, 7009, 7396, 8476, 9245, 10595, 11180, 14018, 14792, 16952, 18490, 21190, 22360, 24037, 28036, 35045, 36980, 42380, 48074, 56072, 70090, 73960, 84760, 91117, 96148, 120185, 140180, 182234, 192296, 240370, 280360, 301387, 364468, 455585, 480740, 602774, 728936, 911170, 961480, 1205548, 1506935, 1822340, 2411096, 3013870, 3644680, 3918031, 6027740, 7836062, 12055480, 15672124, 19590155, 31344248, 39180310, 78360620, 156721240]

約数ペア:

[(1, 156721240), (2, 78360620), (4, 39180310), (5, 31344248), (8, 19590155), (10, 15672124), (13, 12055480), (20, 7836062), (26, 6027740), (40, 3918031), (43, 3644680), (52, 3013870), (65, 2411096), (86, 1822340), (104, 1506935), (130, 1205548), (163, 961480), (172, 911170), (215, 728936), (260, 602774), (326, 480740), (344, 455585), (430, 364468), (520, 301387), (559, 280360), (652, 240370), (815, 192296), (860, 182234), (1118, 140180), (1304, 120185), (1630, 96148), (1720, 91117), (1849, 84760), (2119, 73960), (2236, 70090), (2795, 56072), (3260, 48074), (3698, 42380), (4238, 36980), (4472, 35045), (5590, 28036), (6520, 24037), (7009, 22360), (7396, 21190), (8476, 18490), (9245, 16952), (10595, 14792), (11180, 14018)]