205481601

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 348653760

約数和(自身を除く): 143172159

約数列:

[1, 3, 9, 13, 17, 39, 51, 59, 103, 117, 153, 177, 221, 289, 309, 531, 663, 767, 867, 927, 1003, 1339, 1751, 1989, 2301, 2601, 3009, 3757, 4017, 5253, 6077, 6903, 9027, 11271, 12051, 13039, 15759, 17051, 18231, 22763, 29767, 33813, 39117, 51153, 54693, 68289, 79001, 89301, 103309, 117351, 153459, 204867, 221663, 237003, 267903, 309927, 386971, 664989, 711009, 929781, 1160913, 1343017, 1756253, 1994967, 3482739, 4029051, 5268759, 12087153, 15806277, 22831289, 68493867, 205481601]

約数ペア:

[(1, 205481601), (3, 68493867), (9, 22831289), (13, 15806277), (17, 12087153), (39, 5268759), (51, 4029051), (59, 3482739), (103, 1994967), (117, 1756253), (153, 1343017), (177, 1160913), (221, 929781), (289, 711009), (309, 664989), (531, 386971), (663, 309927), (767, 267903), (867, 237003), (927, 221663), (1003, 204867), (1339, 153459), (1751, 117351), (1989, 103309), (2301, 89301), (2601, 79001), (3009, 68289), (3757, 54693), (4017, 51153), (5253, 39117), (6077, 33813), (6903, 29767), (9027, 22763), (11271, 18231), (12051, 17051), (13039, 15759)]