261532492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8539}}^1$

素因数の和:8606

約数の個数: 48

約数和(自身を含む): 535628800

約数和(自身を除く): 274096308

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 7657, 8539, 15314, 17078, 30628, 34156, 111007, 162241, 222014, 264709, 324482, 444028, 529418, 648964, 1058836, 2109133, 3441217, 4218266, 5029471, 6882434, 8436532, 10058942, 13764868, 20117884, 65383123, 130766246, 261532492]

約数ペア:

[(1, 261532492), (2, 130766246), (4, 65383123), (13, 20117884), (19, 13764868), (26, 10058942), (31, 8436532), (38, 6882434), (52, 5029471), (62, 4218266), (76, 3441217), (124, 2109133), (247, 1058836), (403, 648964), (494, 529418), (589, 444028), (806, 324482), (988, 264709), (1178, 222014), (1612, 162241), (2356, 111007), (7657, 34156), (8539, 30628), (15314, 17078)]