28396060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18439}}^1$

素因数の和:18466

約数の個数: 48

約数和(自身を含む): 74350080

約数和(自身を除く): 45954020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18439, 36878, 73756, 92195, 129073, 184390, 202829, 258146, 368780, 405658, 516292, 645365, 811316, 1014145, 1290730, 1419803, 2028290, 2581460, 2839606, 4056580, 5679212, 7099015, 14198030, 28396060]

約数ペア:

[(1, 28396060), (2, 14198030), (4, 7099015), (5, 5679212), (7, 4056580), (10, 2839606), (11, 2581460), (14, 2028290), (20, 1419803), (22, 1290730), (28, 1014145), (35, 811316), (44, 645365), (55, 516292), (70, 405658), (77, 368780), (110, 258146), (140, 202829), (154, 184390), (220, 129073), (308, 92195), (385, 73756), (770, 36878), (1540, 18439)]