89925760

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2069

約数の個数: 64

約数和(自身を含む): 218116800

約数和(自身を除く): 128191040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1979, 2272, 2840, 3958, 4544, 5680, 7916, 9088, 9895, 11360, 15832, 19790, 22720, 31664, 39580, 45440, 63328, 79160, 126656, 140509, 158320, 253312, 281018, 316640, 562036, 633280, 702545, 1124072, 1266560, 1405090, 2248144, 2810180, 4496288, 5620360, 8992576, 11240720, 17985152, 22481440, 44962880, 89925760]

約数ペア:

[(1, 89925760), (2, 44962880), (4, 22481440), (5, 17985152), (8, 11240720), (10, 8992576), (16, 5620360), (20, 4496288), (32, 2810180), (40, 2248144), (64, 1405090), (71, 1266560), (80, 1124072), (128, 702545), (142, 633280), (160, 562036), (284, 316640), (320, 281018), (355, 253312), (568, 158320), (640, 140509), (710, 126656), (1136, 79160), (1420, 63328), (1979, 45440), (2272, 39580), (2840, 31664), (3958, 22720), (4544, 19790), (5680, 15832), (7916, 11360), (9088, 9895)]