257754770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9137}}^1$

素因数の和:9195

約数の個数: 64

約数和(自身を含む): 589510656

約数和(自身を除く): 331755886

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 434, 455, 806, 910, 1085, 2015, 2170, 2821, 4030, 5642, 9137, 14105, 18274, 28210, 45685, 63959, 91370, 118781, 127918, 237562, 283247, 319795, 566494, 593905, 639590, 831467, 1187810, 1416235, 1662934, 1982729, 2832470, 3682211, 3965458, 4157335, 7364422, 8314670, 9913645, 18411055, 19827290, 25775477, 36822110, 51550954, 128877385, 257754770]

約数ペア:

[(1, 257754770), (2, 128877385), (5, 51550954), (7, 36822110), (10, 25775477), (13, 19827290), (14, 18411055), (26, 9913645), (31, 8314670), (35, 7364422), (62, 4157335), (65, 3965458), (70, 3682211), (91, 2832470), (130, 1982729), (155, 1662934), (182, 1416235), (217, 1187810), (310, 831467), (403, 639590), (434, 593905), (455, 566494), (806, 319795), (910, 283247), (1085, 237562), (2015, 127918), (2170, 118781), (2821, 91370), (4030, 63959), (5642, 45685), (9137, 28210), (14105, 18274)]