81238395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 160174080

約数和(自身を除く): 78935685

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 399, 645, 665, 817, 903, 947, 1505, 1995, 2451, 2841, 4085, 4515, 4735, 5719, 6629, 12255, 14205, 17157, 17993, 19887, 28595, 33145, 40721, 53979, 85785, 89965, 99435, 122163, 125951, 203605, 269895, 285047, 377853, 610815, 629755, 773699, 855141, 1425235, 1889265, 2321097, 3868495, 4275705, 5415893, 11605485, 16247679, 27079465, 81238395]

約数ペア:

[(1, 81238395), (3, 27079465), (5, 16247679), (7, 11605485), (15, 5415893), (19, 4275705), (21, 3868495), (35, 2321097), (43, 1889265), (57, 1425235), (95, 855141), (105, 773699), (129, 629755), (133, 610815), (215, 377853), (285, 285047), (301, 269895), (399, 203605), (645, 125951), (665, 122163), (817, 99435), (903, 89965), (947, 85785), (1505, 53979), (1995, 40721), (2451, 33145), (2841, 28595), (4085, 19887), (4515, 17993), (4735, 17157), (5719, 14205), (6629, 12255)]