81325928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{2357}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 161287200

約数和(自身を除く): 79961272

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 227, 454, 908, 1816, 2357, 4313, 4714, 8626, 9428, 17252, 18856, 34504, 44783, 89566, 179132, 358264, 535039, 1070078, 2140156, 4280312, 10165741, 20331482, 40662964, 81325928]

約数ペア:

[(1, 81325928), (2, 40662964), (4, 20331482), (8, 10165741), (19, 4280312), (38, 2140156), (76, 1070078), (152, 535039), (227, 358264), (454, 179132), (908, 89566), (1816, 44783), (2357, 34504), (4313, 18856), (4714, 17252), (8626, 9428)]