78958720

素因数分解:

$2^7\times 5^1\times {\mathrm{123373}}^1$

素因数の和:123392

約数の個数: 32

約数和(自身を含む): 188762220

約数和(自身を除く): 109803500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123373, 246746, 493492, 616865, 986984, 1233730, 1973968, 2467460, 3947936, 4934920, 7895872, 9869840, 15791744, 19739680, 39479360, 78958720]

約数ペア:

[(1, 78958720), (2, 39479360), (4, 19739680), (5, 15791744), (8, 9869840), (10, 7895872), (16, 4934920), (20, 3947936), (32, 2467460), (40, 1973968), (64, 1233730), (80, 986984), (128, 616865), (160, 493492), (320, 246746), (640, 123373)]