799828520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{645023}}^1$

素因数の和:645065

約数の個数: 32

約数和(自身を含む): 1857669120

約数和(自身を除く): 1057840600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 645023, 1290046, 2580092, 3225115, 5160184, 6450230, 12900460, 19995713, 25800920, 39991426, 79982852, 99978565, 159965704, 199957130, 399914260, 799828520]

約数ペア:

[(1, 799828520), (2, 399914260), (4, 199957130), (5, 159965704), (8, 99978565), (10, 79982852), (20, 39991426), (31, 25800920), (40, 19995713), (62, 12900460), (124, 6450230), (155, 5160184), (248, 3225115), (310, 2580092), (620, 1290046), (1240, 645023)]