18618145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 11863775

約数列:

[1, 5, 7, 13, 17, 29, 35, 65, 83, 85, 91, 119, 145, 203, 221, 377, 415, 455, 493, 581, 595, 1015, 1079, 1105, 1411, 1547, 1885, 2407, 2465, 2639, 2905, 3451, 5395, 6409, 7055, 7553, 7735, 9877, 12035, 13195, 16849, 17255, 18343, 31291, 32045, 37765, 40919, 44863, 49385, 84245, 91715, 128401, 156455, 204595, 219037, 224315, 286433, 531947, 642005, 1095185, 1432165, 2659735, 3723629, 18618145]

約数ペア:

[(1, 18618145), (5, 3723629), (7, 2659735), (13, 1432165), (17, 1095185), (29, 642005), (35, 531947), (65, 286433), (83, 224315), (85, 219037), (91, 204595), (119, 156455), (145, 128401), (203, 91715), (221, 84245), (377, 49385), (415, 44863), (455, 40919), (493, 37765), (581, 32045), (595, 31291), (1015, 18343), (1079, 17255), (1105, 16849), (1411, 13195), (1547, 12035), (1885, 9877), (2407, 7735), (2465, 7553), (2639, 7055), (2905, 6409), (3451, 5395)]