154906880

素因数分解:

$2^8\times 5^1\times {\mathrm{121021}}^1$

素因数の和:121042

約数の個数: 36

約数和(自身を含む): 371053452

約数和(自身を除く): 216146572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 121021, 242042, 484084, 605105, 968168, 1210210, 1936336, 2420420, 3872672, 4840840, 7745344, 9681680, 15490688, 19363360, 30981376, 38726720, 77453440, 154906880]

約数ペア:

[(1, 154906880), (2, 77453440), (4, 38726720), (5, 30981376), (8, 19363360), (10, 15490688), (16, 9681680), (20, 7745344), (32, 4840840), (40, 3872672), (64, 2420420), (80, 1936336), (128, 1210210), (160, 968168), (256, 605105), (320, 484084), (640, 242042), (1280, 121021)]