261203040

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{25913}}^1$

素因数の和:25941

約数の個数: 144

約数和(自身を含む): 1018731168

約数和(自身を除く): 757528128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 25913, 51826, 77739, 103652, 129565, 155478, 181391, 207304, 233217, 259130, 310956, 362782, 388695, 414608, 466434, 518260, 544173, 621912, 725564, 777390, 829216, 906955, 932868, 1036520, 1088346, 1166085, 1243824, 1451128, 1554780, 1632519, 1813910, 1865736, 2073040, 2176692, 2332170, 2487648, 2720865, 2902256, 3109560, 3265038, 3627820, 3731472, 4146080, 4353384, 4664340, 5441730, 5804512, 6219120, 6530076, 7255640, 7462944, 8162595, 8706768, 9328680, 10883460, 12438240, 13060152, 14511280, 16325190, 17413536, 18657360, 21766920, 26120304, 29022560, 32650380, 37314720, 43533840, 52240608, 65300760, 87067680, 130601520, 261203040]

約数ペア:

[(1, 261203040), (2, 130601520), (3, 87067680), (4, 65300760), (5, 52240608), (6, 43533840), (7, 37314720), (8, 32650380), (9, 29022560), (10, 26120304), (12, 21766920), (14, 18657360), (15, 17413536), (16, 16325190), (18, 14511280), (20, 13060152), (21, 12438240), (24, 10883460), (28, 9328680), (30, 8706768), (32, 8162595), (35, 7462944), (36, 7255640), (40, 6530076), (42, 6219120), (45, 5804512), (48, 5441730), (56, 4664340), (60, 4353384), (63, 4146080), (70, 3731472), (72, 3627820), (80, 3265038), (84, 3109560), (90, 2902256), (96, 2720865), (105, 2487648), (112, 2332170), (120, 2176692), (126, 2073040), (140, 1865736), (144, 1813910), (160, 1632519), (168, 1554780), (180, 1451128), (210, 1243824), (224, 1166085), (240, 1088346), (252, 1036520), (280, 932868), (288, 906955), (315, 829216), (336, 777390), (360, 725564), (420, 621912), (480, 544173), (504, 518260), (560, 466434), (630, 414608), (672, 388695), (720, 362782), (840, 310956), (1008, 259130), (1120, 233217), (1260, 207304), (1440, 181391), (1680, 155478), (2016, 129565), (2520, 103652), (3360, 77739), (5040, 51826), (10080, 25913)]