18646240

素因数分解:

$2^5\times 5^1\times {\mathrm{116539}}^1$

素因数の和:116554

約数の個数: 24

約数和(自身を含む): 44052120

約数和(自身を除く): 25405880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 116539, 233078, 466156, 582695, 932312, 1165390, 1864624, 2330780, 3729248, 4661560, 9323120, 18646240]

約数ペア:

[(1, 18646240), (2, 9323120), (4, 4661560), (5, 3729248), (8, 2330780), (10, 1864624), (16, 1165390), (20, 932312), (32, 582695), (40, 466156), (80, 233078), (160, 116539)]