20202165

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 37065600

約数和(自身を除く): 16863435

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 131, 149, 207, 345, 393, 447, 655, 745, 1035, 1179, 1341, 1965, 2235, 3013, 3427, 5895, 6705, 9039, 10281, 15065, 17135, 19519, 27117, 30843, 45195, 51405, 58557, 97595, 135585, 154215, 175671, 292785, 448937, 878355, 1346811, 2244685, 4040433, 6734055, 20202165]

約数ペア:

[(1, 20202165), (3, 6734055), (5, 4040433), (9, 2244685), (15, 1346811), (23, 878355), (45, 448937), (69, 292785), (115, 175671), (131, 154215), (149, 135585), (207, 97595), (345, 58557), (393, 51405), (447, 45195), (655, 30843), (745, 27117), (1035, 19519), (1179, 17135), (1341, 15065), (1965, 10281), (2235, 9039), (3013, 6705), (3427, 5895)]