79809920

素因数分解:

$2^7\times 5^1\times {\mathrm{124703}}^1$

素因数の和:124722

約数の個数: 32

約数和(自身を含む): 190797120

約数和(自身を除く): 110987200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 124703, 249406, 498812, 623515, 997624, 1247030, 1995248, 2494060, 3990496, 4988120, 7980992, 9976240, 15961984, 19952480, 39904960, 79809920]

約数ペア:

[(1, 79809920), (2, 39904960), (4, 19952480), (5, 15961984), (8, 9976240), (10, 7980992), (16, 4988120), (20, 3990496), (32, 2494060), (40, 1995248), (64, 1247030), (80, 997624), (128, 623515), (160, 498812), (320, 249406), (640, 124703)]