204439905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1523}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 375635520

約数和(自身を除く): 171195615

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 157, 171, 285, 471, 785, 855, 1413, 1523, 2355, 2983, 4569, 7065, 7615, 8949, 13707, 14915, 22845, 26847, 28937, 44745, 68535, 86811, 134235, 144685, 239111, 260433, 434055, 717333, 1195555, 1302165, 2151999, 3586665, 4543109, 10759995, 13629327, 22715545, 40887981, 68146635, 204439905]

約数ペア:

[(1, 204439905), (3, 68146635), (5, 40887981), (9, 22715545), (15, 13629327), (19, 10759995), (45, 4543109), (57, 3586665), (95, 2151999), (157, 1302165), (171, 1195555), (285, 717333), (471, 434055), (785, 260433), (855, 239111), (1413, 144685), (1523, 134235), (2355, 86811), (2983, 68535), (4569, 44745), (7065, 28937), (7615, 26847), (8949, 22845), (13707, 14915)]