154561520

素因数分解:

$2^4\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{1399}}^1$

素因数の和:2793

約数の個数: 40

約数和(自身を含む): 359872800

約数和(自身を除く): 205311280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1381, 1399, 2762, 2798, 5524, 5596, 6905, 6995, 11048, 11192, 13810, 13990, 22096, 22384, 27620, 27980, 55240, 55960, 110480, 111920, 1932019, 3864038, 7728076, 9660095, 15456152, 19320190, 30912304, 38640380, 77280760, 154561520]

約数ペア:

[(1, 154561520), (2, 77280760), (4, 38640380), (5, 30912304), (8, 19320190), (10, 15456152), (16, 9660095), (20, 7728076), (40, 3864038), (80, 1932019), (1381, 111920), (1399, 110480), (2762, 55960), (2798, 55240), (5524, 27980), (5596, 27620), (6905, 22384), (6995, 22096), (11048, 13990), (11192, 13810)]