2018128520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1627523}}^1$

素因数の和:1627565

約数の個数: 32

約数和(自身を含む): 4687269120

約数和(自身を除く): 2669140600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1627523, 3255046, 6510092, 8137615, 13020184, 16275230, 32550460, 50453213, 65100920, 100906426, 201812852, 252266065, 403625704, 504532130, 1009064260, 2018128520]

約数ペア:

[(1, 2018128520), (2, 1009064260), (4, 504532130), (5, 403625704), (8, 252266065), (10, 201812852), (20, 100906426), (31, 65100920), (40, 50453213), (62, 32550460), (124, 16275230), (155, 13020184), (248, 8137615), (310, 6510092), (620, 3255046), (1240, 1627523)]