31381560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{593}}^1$

素因数の和:627

約数の個数: 192

約数和(自身を含む): 121888800

約数和(自身を除く): 90507240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 360, 378, 392, 420, 441, 490, 504, 540, 588, 593, 630, 735, 756, 840, 882, 945, 980, 1080, 1176, 1186, 1260, 1323, 1470, 1512, 1764, 1779, 1890, 1960, 2205, 2372, 2520, 2646, 2940, 2965, 3528, 3558, 3780, 4151, 4410, 4744, 5292, 5337, 5880, 5930, 6615, 7116, 7560, 8302, 8820, 8895, 10584, 10674, 11860, 12453, 13230, 14232, 16011, 16604, 17640, 17790, 20755, 21348, 23720, 24906, 26460, 26685, 29057, 32022, 33208, 35580, 37359, 41510, 42696, 49812, 52920, 53370, 58114, 62265, 64044, 71160, 74718, 80055, 83020, 87171, 99624, 106740, 112077, 116228, 124530, 128088, 145285, 149436, 160110, 166040, 174342, 186795, 213480, 224154, 232456, 249060, 261513, 290570, 298872, 320220, 348684, 373590, 435855, 448308, 498120, 523026, 560385, 581140, 640440, 697368, 747180, 784539, 871710, 896616, 1046052, 1120770, 1162280, 1307565, 1494360, 1569078, 1743420, 2092104, 2241540, 2615130, 3138156, 3486840, 3922695, 4483080, 5230260, 6276312, 7845390, 10460520, 15690780, 31381560]

約数ペア:

[(1, 31381560), (2, 15690780), (3, 10460520), (4, 7845390), (5, 6276312), (6, 5230260), (7, 4483080), (8, 3922695), (9, 3486840), (10, 3138156), (12, 2615130), (14, 2241540), (15, 2092104), (18, 1743420), (20, 1569078), (21, 1494360), (24, 1307565), (27, 1162280), (28, 1120770), (30, 1046052), (35, 896616), (36, 871710), (40, 784539), (42, 747180), (45, 697368), (49, 640440), (54, 581140), (56, 560385), (60, 523026), (63, 498120), (70, 448308), (72, 435855), (84, 373590), (90, 348684), (98, 320220), (105, 298872), (108, 290570), (120, 261513), (126, 249060), (135, 232456), (140, 224154), (147, 213480), (168, 186795), (180, 174342), (189, 166040), (196, 160110), (210, 149436), (216, 145285), (245, 128088), (252, 124530), (270, 116228), (280, 112077), (294, 106740), (315, 99624), (360, 87171), (378, 83020), (392, 80055), (420, 74718), (441, 71160), (490, 64044), (504, 62265), (540, 58114), (588, 53370), (593, 52920), (630, 49812), (735, 42696), (756, 41510), (840, 37359), (882, 35580), (945, 33208), (980, 32022), (1080, 29057), (1176, 26685), (1186, 26460), (1260, 24906), (1323, 23720), (1470, 21348), (1512, 20755), (1764, 17790), (1779, 17640), (1890, 16604), (1960, 16011), (2205, 14232), (2372, 13230), (2520, 12453), (2646, 11860), (2940, 10674), (2965, 10584), (3528, 8895), (3558, 8820), (3780, 8302), (4151, 7560), (4410, 7116), (4744, 6615), (5292, 5930), (5337, 5880)]