278792640

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{13829}}^1$

素因数の和:13859

約数の個数: 168

約数和(自身を含む): 1095999840

約数和(自身を除く): 817207200

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, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 13829, 20160, 27658, 41487, 55316, 69145, 82974, 96803, 110632, 124461, 138290, 165948, 193606, 207435, 221264, 248922, 276580, 290409, 331896, 387212, 414870, 442528, 484015, 497844, 553160, 580818, 622305, 663792, 774424, 829740, 871227, 885056, 968030, 995688, 1106320, 1161636, 1244610, 1327584, 1452045, 1548848, 1659480, 1742454, 1936060, 1991376, 2212640, 2323272, 2489220, 2655168, 2904090, 3097696, 3318960, 3484908, 3872120, 3982752, 4356135, 4425280, 4646544, 4978440, 5808180, 6195392, 6637920, 6969816, 7744240, 7965504, 8712270, 9293088, 9956880, 11616360, 13275840, 13939632, 15488480, 17424540, 18586176, 19913760, 23232720, 27879264, 30976960, 34849080, 39827520, 46465440, 55758528, 69698160, 92930880, 139396320, 278792640]

約数ペア:

[(1, 278792640), (2, 139396320), (3, 92930880), (4, 69698160), (5, 55758528), (6, 46465440), (7, 39827520), (8, 34849080), (9, 30976960), (10, 27879264), (12, 23232720), (14, 19913760), (15, 18586176), (16, 17424540), (18, 15488480), (20, 13939632), (21, 13275840), (24, 11616360), (28, 9956880), (30, 9293088), (32, 8712270), (35, 7965504), (36, 7744240), (40, 6969816), (42, 6637920), (45, 6195392), (48, 5808180), (56, 4978440), (60, 4646544), (63, 4425280), (64, 4356135), (70, 3982752), (72, 3872120), (80, 3484908), (84, 3318960), (90, 3097696), (96, 2904090), (105, 2655168), (112, 2489220), (120, 2323272), (126, 2212640), (140, 1991376), (144, 1936060), (160, 1742454), (168, 1659480), (180, 1548848), (192, 1452045), (210, 1327584), (224, 1244610), (240, 1161636), (252, 1106320), (280, 995688), (288, 968030), (315, 885056), (320, 871227), (336, 829740), (360, 774424), (420, 663792), (448, 622305), (480, 580818), (504, 553160), (560, 497844), (576, 484015), (630, 442528), (672, 414870), (720, 387212), (840, 331896), (960, 290409), (1008, 276580), (1120, 248922), (1260, 221264), (1344, 207435), (1440, 193606), (1680, 165948), (2016, 138290), (2240, 124461), (2520, 110632), (2880, 96803), (3360, 82974), (4032, 69145), (5040, 55316), (6720, 41487), (10080, 27658), (13829, 20160)]