63967720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{9811}}^1$

素因数の和:9985

約数の個数: 32

約数和(自身を含む): 144825120

約数和(自身を除く): 80857400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 9811, 19622, 39244, 49055, 78488, 98110, 196220, 392440, 1599193, 3198386, 6396772, 7995965, 12793544, 15991930, 31983860, 63967720]

約数ペア:

[(1, 63967720), (2, 31983860), (4, 15991930), (5, 12793544), (8, 7995965), (10, 6396772), (20, 3198386), (40, 1599193), (163, 392440), (326, 196220), (652, 98110), (815, 78488), (1304, 49055), (1630, 39244), (3260, 19622), (6520, 9811)]