261278640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1176

約数の個数: 240

約数和(自身を含む): 1025077248

約数和(自身を除く): 763798608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 280, 282, 315, 329, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 705, 720, 752, 840, 846, 940, 987, 1008, 1103, 1128, 1260, 1316, 1410, 1645, 1680, 1692, 1880, 1974, 2115, 2206, 2256, 2520, 2632, 2820, 2961, 3290, 3309, 3384, 3760, 3948, 4230, 4412, 4935, 5040, 5264, 5515, 5640, 5922, 6580, 6618, 6768, 7721, 7896, 8460, 8824, 9870, 9927, 11030, 11280, 11844, 13160, 13236, 14805, 15442, 15792, 16545, 16920, 17648, 19740, 19854, 22060, 23163, 23688, 26320, 26472, 29610, 30884, 33090, 33840, 38605, 39480, 39708, 44120, 46326, 47376, 49635, 51841, 52944, 59220, 61768, 66180, 69489, 77210, 78960, 79416, 88240, 92652, 99270, 103682, 115815, 118440, 123536, 132360, 138978, 154420, 155523, 158832, 185304, 198540, 207364, 231630, 236880, 259205, 264720, 277956, 308840, 311046, 347445, 362887, 370608, 397080, 414728, 463260, 466569, 518410, 555912, 617680, 622092, 694890, 725774, 777615, 794160, 829456, 926520, 933138, 1036820, 1088661, 1111824, 1244184, 1389780, 1451548, 1555230, 1814435, 1853040, 1866276, 2073640, 2177322, 2332845, 2488368, 2779560, 2903096, 3110460, 3265983, 3628870, 3732552, 4147280, 4354644, 4665690, 5443305, 5559120, 5806192, 6220920, 6531966, 7257740, 7465104, 8709288, 9331380, 10886610, 12441840, 13063932, 14515480, 16329915, 17418576, 18662760, 21773220, 26127864, 29030960, 32659830, 37325520, 43546440, 52255728, 65319660, 87092880, 130639320, 261278640]

約数ペア:

[(1, 261278640), (2, 130639320), (3, 87092880), (4, 65319660), (5, 52255728), (6, 43546440), (7, 37325520), (8, 32659830), (9, 29030960), (10, 26127864), (12, 21773220), (14, 18662760), (15, 17418576), (16, 16329915), (18, 14515480), (20, 13063932), (21, 12441840), (24, 10886610), (28, 9331380), (30, 8709288), (35, 7465104), (36, 7257740), (40, 6531966), (42, 6220920), (45, 5806192), (47, 5559120), (48, 5443305), (56, 4665690), (60, 4354644), (63, 4147280), (70, 3732552), (72, 3628870), (80, 3265983), (84, 3110460), (90, 2903096), (94, 2779560), (105, 2488368), (112, 2332845), (120, 2177322), (126, 2073640), (140, 1866276), (141, 1853040), (144, 1814435), (168, 1555230), (180, 1451548), (188, 1389780), (210, 1244184), (235, 1111824), (240, 1088661), (252, 1036820), (280, 933138), (282, 926520), (315, 829456), (329, 794160), (336, 777615), (360, 725774), (376, 694890), (420, 622092), (423, 617680), (470, 555912), (504, 518410), (560, 466569), (564, 463260), (630, 414728), (658, 397080), (705, 370608), (720, 362887), (752, 347445), (840, 311046), (846, 308840), (940, 277956), (987, 264720), (1008, 259205), (1103, 236880), (1128, 231630), (1260, 207364), (1316, 198540), (1410, 185304), (1645, 158832), (1680, 155523), (1692, 154420), (1880, 138978), (1974, 132360), (2115, 123536), (2206, 118440), (2256, 115815), (2520, 103682), (2632, 99270), (2820, 92652), (2961, 88240), (3290, 79416), (3309, 78960), (3384, 77210), (3760, 69489), (3948, 66180), (4230, 61768), (4412, 59220), (4935, 52944), (5040, 51841), (5264, 49635), (5515, 47376), (5640, 46326), (5922, 44120), (6580, 39708), (6618, 39480), (6768, 38605), (7721, 33840), (7896, 33090), (8460, 30884), (8824, 29610), (9870, 26472), (9927, 26320), (11030, 23688), (11280, 23163), (11844, 22060), (13160, 19854), (13236, 19740), (14805, 17648), (15442, 16920), (15792, 16545)]