205514155

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 323481600

約数和(自身を除く): 117967445

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 79, 145, 203, 233, 319, 385, 395, 553, 869, 1015, 1165, 1595, 1631, 2233, 2291, 2563, 2765, 4345, 6083, 6757, 8155, 11165, 11455, 12815, 16037, 17941, 18407, 25201, 30415, 33785, 47299, 74327, 80185, 89705, 92035, 126005, 128849, 176407, 202477, 236495, 371635, 520289, 533803, 644245, 882035, 1012385, 1417339, 2601445, 2669015, 3736621, 5871833, 7086695, 18683105, 29359165, 41102831, 205514155]

約数ペア:

[(1, 205514155), (5, 41102831), (7, 29359165), (11, 18683105), (29, 7086695), (35, 5871833), (55, 3736621), (77, 2669015), (79, 2601445), (145, 1417339), (203, 1012385), (233, 882035), (319, 644245), (385, 533803), (395, 520289), (553, 371635), (869, 236495), (1015, 202477), (1165, 176407), (1595, 128849), (1631, 126005), (2233, 92035), (2291, 89705), (2563, 80185), (2765, 74327), (4345, 47299), (6083, 33785), (6757, 30415), (8155, 25201), (11165, 18407), (11455, 17941), (12815, 16037)]