127740920

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{5903}}^1$

素因数の和:6455

約数の個数: 32

約数和(自身を含む): 287997120

約数和(自身を除く): 160256200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 2164, 2705, 4328, 5410, 5903, 10820, 11806, 21640, 23612, 29515, 47224, 59030, 118060, 236120, 3193523, 6387046, 12774092, 15967615, 25548184, 31935230, 63870460, 127740920]

約数ペア:

[(1, 127740920), (2, 63870460), (4, 31935230), (5, 25548184), (8, 15967615), (10, 12774092), (20, 6387046), (40, 3193523), (541, 236120), (1082, 118060), (2164, 59030), (2705, 47224), (4328, 29515), (5410, 23612), (5903, 21640), (10820, 11806)]