86971100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 194779200

約数和(自身を除く): 107808100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 101, 109, 158, 202, 218, 316, 395, 404, 436, 505, 545, 790, 1010, 1090, 1580, 1975, 2020, 2180, 2525, 2725, 3950, 5050, 5450, 7900, 7979, 8611, 10100, 10900, 11009, 15958, 17222, 22018, 31916, 34444, 39895, 43055, 44036, 55045, 79790, 86110, 110090, 159580, 172220, 199475, 215275, 220180, 275225, 398950, 430550, 550450, 797900, 861100, 869711, 1100900, 1739422, 3478844, 4348555, 8697110, 17394220, 21742775, 43485550, 86971100]

約数ペア:

[(1, 86971100), (2, 43485550), (4, 21742775), (5, 17394220), (10, 8697110), (20, 4348555), (25, 3478844), (50, 1739422), (79, 1100900), (100, 869711), (101, 861100), (109, 797900), (158, 550450), (202, 430550), (218, 398950), (316, 275225), (395, 220180), (404, 215275), (436, 199475), (505, 172220), (545, 159580), (790, 110090), (1010, 86110), (1090, 79790), (1580, 55045), (1975, 44036), (2020, 43055), (2180, 39895), (2525, 34444), (2725, 31916), (3950, 22018), (5050, 17222), (5450, 15958), (7900, 11009), (7979, 10900), (8611, 10100)]