28131040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25117}}^1$

素因数の和:25139

約数の個数: 48

約数和(自身を含む): 75956832

約数和(自身を除く): 47825792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25117, 50234, 100468, 125585, 175819, 200936, 251170, 351638, 401872, 502340, 703276, 803744, 879095, 1004680, 1406552, 1758190, 2009360, 2813104, 3516380, 4018720, 5626208, 7032760, 14065520, 28131040]

約数ペア:

[(1, 28131040), (2, 14065520), (4, 7032760), (5, 5626208), (7, 4018720), (8, 3516380), (10, 2813104), (14, 2009360), (16, 1758190), (20, 1406552), (28, 1004680), (32, 879095), (35, 803744), (40, 703276), (56, 502340), (70, 401872), (80, 351638), (112, 251170), (140, 200936), (160, 175819), (224, 125585), (280, 100468), (560, 50234), (1120, 25117)]