280325680

素因数分解:

$2^4\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{2347}}^1$

素因数の和:3853

約数の個数: 40

約数和(自身を含む): 652471632

約数和(自身を除く): 372145952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1493, 2347, 2986, 4694, 5972, 7465, 9388, 11735, 11944, 14930, 18776, 23470, 23888, 29860, 37552, 46940, 59720, 93880, 119440, 187760, 3504071, 7008142, 14016284, 17520355, 28032568, 35040710, 56065136, 70081420, 140162840, 280325680]

約数ペア:

[(1, 280325680), (2, 140162840), (4, 70081420), (5, 56065136), (8, 35040710), (10, 28032568), (16, 17520355), (20, 14016284), (40, 7008142), (80, 3504071), (1493, 187760), (2347, 119440), (2986, 93880), (4694, 59720), (5972, 46940), (7465, 37552), (9388, 29860), (11735, 23888), (11944, 23470), (14930, 18776)]