2018544920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{81001}}^1$

素因数の和:81108

約数の個数: 64

約数和(自身を含む): 5248929600

約数和(自身を除く): 3230384680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 3115, 3560, 4984, 6230, 12460, 24920, 81001, 162002, 324004, 405005, 567007, 648008, 810010, 1134014, 1620020, 2268028, 2835035, 3240040, 4536056, 5670070, 7209089, 11340140, 14418178, 22680280, 28836356, 36045445, 50463623, 57672712, 72090890, 100927246, 144181780, 201854492, 252318115, 288363560, 403708984, 504636230, 1009272460, 2018544920]

約数ペア:

[(1, 2018544920), (2, 1009272460), (4, 504636230), (5, 403708984), (7, 288363560), (8, 252318115), (10, 201854492), (14, 144181780), (20, 100927246), (28, 72090890), (35, 57672712), (40, 50463623), (56, 36045445), (70, 28836356), (89, 22680280), (140, 14418178), (178, 11340140), (280, 7209089), (356, 5670070), (445, 4536056), (623, 3240040), (712, 2835035), (890, 2268028), (1246, 1620020), (1780, 1134014), (2492, 810010), (3115, 648008), (3560, 567007), (4984, 405005), (6230, 324004), (12460, 162002), (24920, 81001)]