1291088

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:195

約数の個数: 40

約数和(自身を含む): 2737920

約数和(自身を除く): 1446832

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 137, 152, 248, 274, 304, 496, 548, 589, 1096, 1178, 2192, 2356, 2603, 4247, 4712, 5206, 8494, 9424, 10412, 16988, 20824, 33976, 41648, 67952, 80693, 161386, 322772, 645544, 1291088]

約数ペア:

[(1, 1291088), (2, 645544), (4, 322772), (8, 161386), (16, 80693), (19, 67952), (31, 41648), (38, 33976), (62, 20824), (76, 16988), (124, 10412), (137, 9424), (152, 8494), (248, 5206), (274, 4712), (304, 4247), (496, 2603), (548, 2356), (589, 2192), (1096, 1178)]