20174250440

素因数分解:

$2^3\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{390671}}^1$

素因数の和:391973

約数の個数: 32

約数和(自身を含む): 45427340160

約数和(自身を除く): 25253089720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1291, 2582, 5164, 6455, 10328, 12910, 25820, 51640, 390671, 781342, 1562684, 1953355, 3125368, 3906710, 7813420, 15626840, 504356261, 1008712522, 2017425044, 2521781305, 4034850088, 5043562610, 10087125220, 20174250440]

約数ペア:

[(1, 20174250440), (2, 10087125220), (4, 5043562610), (5, 4034850088), (8, 2521781305), (10, 2017425044), (20, 1008712522), (40, 504356261), (1291, 15626840), (2582, 7813420), (5164, 3906710), (6455, 3125368), (10328, 1953355), (12910, 1562684), (25820, 781342), (51640, 390671)]