87915040

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^2\times {\mathrm{109}}^1$

素因数の和:266

約数の個数: 72

約数和(自身を含む): 212598540

約数和(自身を除く): 124683500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 109, 142, 160, 218, 284, 355, 436, 545, 568, 710, 872, 1090, 1136, 1420, 1744, 2180, 2272, 2840, 3488, 4360, 5041, 5680, 7739, 8720, 10082, 11360, 15478, 17440, 20164, 25205, 30956, 38695, 40328, 50410, 61912, 77390, 80656, 100820, 123824, 154780, 161312, 201640, 247648, 309560, 403280, 549469, 619120, 806560, 1098938, 1238240, 2197876, 2747345, 4395752, 5494690, 8791504, 10989380, 17583008, 21978760, 43957520, 87915040]

約数ペア:

[(1, 87915040), (2, 43957520), (4, 21978760), (5, 17583008), (8, 10989380), (10, 8791504), (16, 5494690), (20, 4395752), (32, 2747345), (40, 2197876), (71, 1238240), (80, 1098938), (109, 806560), (142, 619120), (160, 549469), (218, 403280), (284, 309560), (355, 247648), (436, 201640), (545, 161312), (568, 154780), (710, 123824), (872, 100820), (1090, 80656), (1136, 77390), (1420, 61912), (1744, 50410), (2180, 40328), (2272, 38695), (2840, 30956), (3488, 25205), (4360, 20164), (5041, 17440), (5680, 15478), (7739, 11360), (8720, 10082)]