31280984

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 71208960

約数和(自身を除く): 39927976

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 56, 62, 74, 124, 148, 217, 248, 259, 296, 434, 487, 518, 868, 974, 1036, 1147, 1736, 1948, 2072, 2294, 3409, 3896, 4588, 6818, 8029, 9176, 13636, 15097, 16058, 18019, 27272, 30194, 32116, 36038, 60388, 64232, 72076, 105679, 120776, 126133, 144152, 211358, 252266, 422716, 504532, 558589, 845432, 1009064, 1117178, 2234356, 3910123, 4468712, 7820246, 15640492, 31280984]

約数ペア:

[(1, 31280984), (2, 15640492), (4, 7820246), (7, 4468712), (8, 3910123), (14, 2234356), (28, 1117178), (31, 1009064), (37, 845432), (56, 558589), (62, 504532), (74, 422716), (124, 252266), (148, 211358), (217, 144152), (248, 126133), (259, 120776), (296, 105679), (434, 72076), (487, 64232), (518, 60388), (868, 36038), (974, 32116), (1036, 30194), (1147, 27272), (1736, 18019), (1948, 16058), (2072, 15097), (2294, 13636), (3409, 9176), (3896, 8029), (4588, 6818)]