28306755

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 51480000

約数和(自身を除く): 23173245

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 109, 145, 199, 261, 327, 435, 545, 597, 981, 995, 1305, 1635, 1791, 2985, 3161, 4905, 5771, 8955, 9483, 15805, 17313, 21691, 28449, 28855, 47415, 51939, 65073, 86565, 108455, 142245, 195219, 259695, 325365, 629039, 976095, 1887117, 3145195, 5661351, 9435585, 28306755]

約数ペア:

[(1, 28306755), (3, 9435585), (5, 5661351), (9, 3145195), (15, 1887117), (29, 976095), (45, 629039), (87, 325365), (109, 259695), (145, 195219), (199, 142245), (261, 108455), (327, 86565), (435, 65073), (545, 51939), (597, 47415), (981, 28855), (995, 28449), (1305, 21691), (1635, 17313), (1791, 15805), (2985, 9483), (3161, 8955), (4905, 5771)]