28711040

素因数分解:

$2^7\times 5^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 69419160

約数和(自身を除く): 40708120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 226, 320, 397, 452, 565, 640, 794, 904, 1130, 1588, 1808, 1985, 2260, 3176, 3616, 3970, 4520, 6352, 7232, 7940, 9040, 12704, 14464, 15880, 18080, 25408, 31760, 36160, 44861, 50816, 63520, 72320, 89722, 127040, 179444, 224305, 254080, 358888, 448610, 717776, 897220, 1435552, 1794440, 2871104, 3588880, 5742208, 7177760, 14355520, 28711040]

約数ペア:

[(1, 28711040), (2, 14355520), (4, 7177760), (5, 5742208), (8, 3588880), (10, 2871104), (16, 1794440), (20, 1435552), (32, 897220), (40, 717776), (64, 448610), (80, 358888), (113, 254080), (128, 224305), (160, 179444), (226, 127040), (320, 89722), (397, 72320), (452, 63520), (565, 50816), (640, 44861), (794, 36160), (904, 31760), (1130, 25408), (1588, 18080), (1808, 15880), (1985, 14464), (2260, 12704), (3176, 9040), (3616, 7940), (3970, 7232), (4520, 6352)]