28212795

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1663}}^1$

素因数の和:1716

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 26299845

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1131, 1305, 1663, 1885, 3393, 4989, 5655, 8315, 14967, 16965, 21619, 24945, 48227, 64857, 74835, 108095, 144681, 194571, 241135, 324285, 434043, 626951, 723405, 972855, 1880853, 2170215, 3134755, 5642559, 9404265, 28212795]

約数ペア:

[(1, 28212795), (3, 9404265), (5, 5642559), (9, 3134755), (13, 2170215), (15, 1880853), (29, 972855), (39, 723405), (45, 626951), (65, 434043), (87, 324285), (117, 241135), (145, 194571), (195, 144681), (261, 108095), (377, 74835), (435, 64857), (585, 48227), (1131, 24945), (1305, 21619), (1663, 16965), (1885, 14967), (3393, 8315), (4989, 5655)]