128713660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{105503}}^1$

素因数の和:105573

約数の個数: 24

約数和(自身を含む): 274732416

約数和(自身を除く): 146018756

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 105503, 211006, 422012, 527515, 1055030, 2110060, 6435683, 12871366, 25742732, 32178415, 64356830, 128713660]

約数ペア:

[(1, 128713660), (2, 64356830), (4, 32178415), (5, 25742732), (10, 12871366), (20, 6435683), (61, 2110060), (122, 1055030), (244, 527515), (305, 422012), (610, 211006), (1220, 105503)]