81138400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{14489}}^1$

素因数の和:14516

約数の個数: 72

約数和(自身を含む): 226391760

約数和(自身を除く): 145253360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 350, 400, 560, 700, 800, 1120, 1400, 2800, 5600, 14489, 28978, 57956, 72445, 101423, 115912, 144890, 202846, 231824, 289780, 362225, 405692, 463648, 507115, 579560, 724450, 811384, 1014230, 1159120, 1448900, 1622768, 2028460, 2318240, 2535575, 2897800, 3245536, 4056920, 5071150, 5795600, 8113840, 10142300, 11591200, 16227680, 20284600, 40569200, 81138400]

約数ペア:

[(1, 81138400), (2, 40569200), (4, 20284600), (5, 16227680), (7, 11591200), (8, 10142300), (10, 8113840), (14, 5795600), (16, 5071150), (20, 4056920), (25, 3245536), (28, 2897800), (32, 2535575), (35, 2318240), (40, 2028460), (50, 1622768), (56, 1448900), (70, 1159120), (80, 1014230), (100, 811384), (112, 724450), (140, 579560), (160, 507115), (175, 463648), (200, 405692), (224, 362225), (280, 289780), (350, 231824), (400, 202846), (560, 144890), (700, 115912), (800, 101423), (1120, 72445), (1400, 57956), (2800, 28978), (5600, 14489)]