900550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 1999872

約数和(自身を除く): 1099322

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 83, 155, 166, 175, 217, 310, 350, 415, 434, 581, 775, 830, 1085, 1162, 1550, 2075, 2170, 2573, 2905, 4150, 5146, 5425, 5810, 10850, 12865, 14525, 18011, 25730, 29050, 36022, 64325, 90055, 128650, 180110, 450275, 900550]

約数ペア:

[(1, 900550), (2, 450275), (5, 180110), (7, 128650), (10, 90055), (14, 64325), (25, 36022), (31, 29050), (35, 25730), (50, 18011), (62, 14525), (70, 12865), (83, 10850), (155, 5810), (166, 5425), (175, 5146), (217, 4150), (310, 2905), (350, 2573), (415, 2170), (434, 2075), (581, 1550), (775, 1162), (830, 1085)]