81384940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 212978304

約数和(自身を除く): 131593364

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 97, 130, 140, 182, 194, 260, 364, 388, 455, 461, 485, 679, 910, 922, 970, 1261, 1358, 1820, 1844, 1940, 2305, 2522, 2716, 3227, 3395, 4610, 5044, 5993, 6305, 6454, 6790, 8827, 9220, 11986, 12610, 12908, 13580, 16135, 17654, 23972, 25220, 29965, 32270, 35308, 41951, 44135, 44717, 59930, 64540, 83902, 88270, 89434, 119860, 167804, 176540, 178868, 209755, 223585, 313019, 419510, 447170, 581321, 626038, 839020, 894340, 1162642, 1252076, 1565095, 2325284, 2906605, 3130190, 4069247, 5813210, 6260380, 8138494, 11626420, 16276988, 20346235, 40692470, 81384940]

約数ペア:

[(1, 81384940), (2, 40692470), (4, 20346235), (5, 16276988), (7, 11626420), (10, 8138494), (13, 6260380), (14, 5813210), (20, 4069247), (26, 3130190), (28, 2906605), (35, 2325284), (52, 1565095), (65, 1252076), (70, 1162642), (91, 894340), (97, 839020), (130, 626038), (140, 581321), (182, 447170), (194, 419510), (260, 313019), (364, 223585), (388, 209755), (455, 178868), (461, 176540), (485, 167804), (679, 119860), (910, 89434), (922, 88270), (970, 83902), (1261, 64540), (1358, 59930), (1820, 44717), (1844, 44135), (1940, 41951), (2305, 35308), (2522, 32270), (2716, 29965), (3227, 25220), (3395, 23972), (4610, 17654), (5044, 16135), (5993, 13580), (6305, 12908), (6454, 12610), (6790, 11986), (8827, 9220)]