1277979664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 2719825920

約数和(自身を除く): 1441846256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 127, 202, 208, 254, 404, 479, 508, 808, 958, 1016, 1313, 1616, 1651, 1916, 2032, 2626, 3302, 3832, 5252, 6227, 6604, 7664, 10504, 12454, 12827, 13208, 21008, 24908, 25654, 26416, 48379, 49816, 51308, 60833, 96758, 99632, 102616, 121666, 166751, 193516, 205232, 243332, 333502, 387032, 486664, 628927, 667004, 774064, 790829, 973328, 1257854, 1334008, 1581658, 2515708, 2668016, 3163316, 5031416, 6144133, 6326632, 10062832, 12288266, 12653264, 24576532, 49153064, 79873729, 98306128, 159747458, 319494916, 638989832, 1277979664]

約数ペア:

[(1, 1277979664), (2, 638989832), (4, 319494916), (8, 159747458), (13, 98306128), (16, 79873729), (26, 49153064), (52, 24576532), (101, 12653264), (104, 12288266), (127, 10062832), (202, 6326632), (208, 6144133), (254, 5031416), (404, 3163316), (479, 2668016), (508, 2515708), (808, 1581658), (958, 1334008), (1016, 1257854), (1313, 973328), (1616, 790829), (1651, 774064), (1916, 667004), (2032, 628927), (2626, 486664), (3302, 387032), (3832, 333502), (5252, 243332), (6227, 205232), (6604, 193516), (7664, 166751), (10504, 121666), (12454, 102616), (12827, 99632), (13208, 96758), (21008, 60833), (24908, 51308), (25654, 49816), (26416, 48379)]