28532840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 73906560

約数和(自身を除く): 45373720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 563, 724, 905, 1126, 1267, 1448, 1810, 2252, 2534, 2815, 3620, 3941, 4504, 5068, 5630, 6335, 7240, 7882, 10136, 11260, 12670, 15764, 19705, 22520, 25340, 31528, 39410, 50680, 78820, 101903, 157640, 203806, 407612, 509515, 713321, 815224, 1019030, 1426642, 2038060, 2853284, 3566605, 4076120, 5706568, 7133210, 14266420, 28532840]

約数ペア:

[(1, 28532840), (2, 14266420), (4, 7133210), (5, 5706568), (7, 4076120), (8, 3566605), (10, 2853284), (14, 2038060), (20, 1426642), (28, 1019030), (35, 815224), (40, 713321), (56, 509515), (70, 407612), (140, 203806), (181, 157640), (280, 101903), (362, 78820), (563, 50680), (724, 39410), (905, 31528), (1126, 25340), (1267, 22520), (1448, 19705), (1810, 15764), (2252, 12670), (2534, 11260), (2815, 10136), (3620, 7882), (3941, 7240), (4504, 6335), (5068, 5630)]