123987320

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 286934400

約数和(自身を除く): 162947080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 107, 118, 214, 236, 295, 428, 472, 491, 535, 590, 856, 982, 1070, 1180, 1964, 2140, 2360, 2455, 3928, 4280, 4910, 6313, 9820, 12626, 19640, 25252, 28969, 31565, 50504, 52537, 57938, 63130, 105074, 115876, 126260, 144845, 210148, 231752, 252520, 262685, 289690, 420296, 525370, 579380, 1050740, 1158760, 2101480, 3099683, 6199366, 12398732, 15498415, 24797464, 30996830, 61993660, 123987320]

約数ペア:

[(1, 123987320), (2, 61993660), (4, 30996830), (5, 24797464), (8, 15498415), (10, 12398732), (20, 6199366), (40, 3099683), (59, 2101480), (107, 1158760), (118, 1050740), (214, 579380), (236, 525370), (295, 420296), (428, 289690), (472, 262685), (491, 252520), (535, 231752), (590, 210148), (856, 144845), (982, 126260), (1070, 115876), (1180, 105074), (1964, 63130), (2140, 57938), (2360, 52537), (2455, 50504), (3928, 31565), (4280, 28969), (4910, 25252), (6313, 19640), (9820, 12626)]