78810785920

素因数分解:

$2^7\times 5^1\times {\mathrm{123141853}}^1$

素因数の和:123141872

約数の個数: 32

約数和(自身を含む): 188407036620

約数和(自身を除く): 109596250700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123141853, 246283706, 492567412, 615709265, 985134824, 1231418530, 1970269648, 2462837060, 3940539296, 4925674120, 7881078592, 9851348240, 15762157184, 19702696480, 39405392960, 78810785920]

約数ペア:

[(1, 78810785920), (2, 39405392960), (4, 19702696480), (5, 15762157184), (8, 9851348240), (10, 7881078592), (16, 4925674120), (20, 3940539296), (32, 2462837060), (40, 1970269648), (64, 1231418530), (80, 985134824), (128, 615709265), (160, 492567412), (320, 246283706), (640, 123141853)]