28361565

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 51592320

約数和(自身を除く): 23230755

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 103, 145, 211, 261, 309, 435, 515, 633, 927, 1055, 1305, 1545, 1899, 2987, 3165, 4635, 6119, 8961, 9495, 14935, 18357, 21733, 26883, 30595, 44805, 55071, 65199, 91785, 108665, 134415, 195597, 275355, 325995, 630257, 977985, 1890771, 3151285, 5672313, 9453855, 28361565]

約数ペア:

[(1, 28361565), (3, 9453855), (5, 5672313), (9, 3151285), (15, 1890771), (29, 977985), (45, 630257), (87, 325995), (103, 275355), (145, 195597), (211, 134415), (261, 108665), (309, 91785), (435, 65199), (515, 55071), (633, 44805), (927, 30595), (1055, 26883), (1305, 21733), (1545, 18357), (1899, 14935), (2987, 9495), (3165, 8961), (4635, 6119)]