64823680

素因数分解:

$2^7\times 5^1\times {\mathrm{101287}}^1$

素因数の和:101306

約数の個数: 32

約数和(自身を含む): 154970640

約数和(自身を除く): 90146960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101287, 202574, 405148, 506435, 810296, 1012870, 1620592, 2025740, 3241184, 4051480, 6482368, 8102960, 12964736, 16205920, 32411840, 64823680]

約数ペア:

[(1, 64823680), (2, 32411840), (4, 16205920), (5, 12964736), (8, 8102960), (10, 6482368), (16, 4051480), (20, 3241184), (32, 2025740), (40, 1620592), (64, 1012870), (80, 810296), (128, 506435), (160, 405148), (320, 202574), (640, 101287)]