642863385

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{4397}}^1$

素因数の和:4452

約数の個数: 60

約数和(自身を含む): 1216513188

約数和(自身を除く): 573649803

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 361, 405, 513, 855, 1083, 1539, 1805, 2565, 3249, 4397, 5415, 7695, 9747, 13191, 16245, 21985, 29241, 39573, 48735, 65955, 83543, 118719, 146205, 197865, 250629, 356157, 417715, 593595, 751887, 1253145, 1587317, 1780785, 2255661, 3759435, 4761951, 6766983, 7936585, 11278305, 14285853, 23809755, 33834915, 42857559, 71429265, 128572677, 214287795, 642863385]

約数ペア:

[(1, 642863385), (3, 214287795), (5, 128572677), (9, 71429265), (15, 42857559), (19, 33834915), (27, 23809755), (45, 14285853), (57, 11278305), (81, 7936585), (95, 6766983), (135, 4761951), (171, 3759435), (285, 2255661), (361, 1780785), (405, 1587317), (513, 1253145), (855, 751887), (1083, 593595), (1539, 417715), (1805, 356157), (2565, 250629), (3249, 197865), (4397, 146205), (5415, 118719), (7695, 83543), (9747, 65955), (13191, 48735), (16245, 39573), (21985, 29241)]