128498416

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{44371}}^1$

素因数の和:44560

約数の個数: 20

約数和(自身を含む): 250346824

約数和(自身を除く): 121848408

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 44371, 88742, 177484, 354968, 709936, 8031151, 16062302, 32124604, 64249208, 128498416]

約数ペア:

[(1, 128498416), (2, 64249208), (4, 32124604), (8, 16062302), (16, 8031151), (181, 709936), (362, 354968), (724, 177484), (1448, 88742), (2896, 44371)]