280624400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 240

約数和(自身を含む): 823661568

約数和(自身を除く): 543037168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 53, 56, 61, 62, 70, 80, 100, 106, 112, 122, 124, 140, 155, 175, 200, 212, 217, 244, 248, 265, 280, 305, 310, 350, 371, 400, 424, 427, 434, 488, 496, 530, 560, 610, 620, 700, 742, 775, 848, 854, 868, 976, 1060, 1085, 1220, 1240, 1325, 1400, 1484, 1525, 1550, 1643, 1708, 1736, 1855, 1891, 2120, 2135, 2170, 2440, 2480, 2650, 2800, 2968, 3050, 3100, 3233, 3286, 3416, 3472, 3710, 3782, 4240, 4270, 4340, 4880, 5300, 5425, 5936, 6100, 6200, 6466, 6572, 6832, 7420, 7564, 8215, 8540, 8680, 9275, 9455, 10600, 10675, 10850, 11501, 12200, 12400, 12932, 13144, 13237, 14840, 15128, 16165, 16430, 17080, 17360, 18550, 18910, 21200, 21350, 21700, 22631, 23002, 24400, 25864, 26288, 26474, 29680, 30256, 32330, 32860, 34160, 37100, 37820, 41075, 42700, 43400, 45262, 46004, 47275, 51728, 52948, 57505, 64660, 65720, 66185, 74200, 75640, 80825, 82150, 85400, 86800, 90524, 92008, 94550, 100223, 105896, 113155, 115010, 129320, 131440, 132370, 148400, 151280, 161650, 164300, 170800, 181048, 184016, 189100, 200446, 211792, 226310, 230020, 258640, 264740, 287525, 323300, 328600, 330925, 362096, 378200, 400892, 452620, 460040, 501115, 529480, 565775, 575050, 646600, 657200, 661850, 701561, 756400, 801784, 905240, 920080, 1002230, 1058960, 1131550, 1150100, 1293200, 1323700, 1403122, 1603568, 1810480, 2004460, 2263100, 2300200, 2505575, 2647400, 2806244, 3507805, 4008920, 4526200, 4600400, 5011150, 5294800, 5612488, 7015610, 8017840, 9052400, 10022300, 11224976, 14031220, 17539025, 20044600, 28062440, 35078050, 40089200, 56124880, 70156100, 140312200, 280624400]

約数ペア:

[(1, 280624400), (2, 140312200), (4, 70156100), (5, 56124880), (7, 40089200), (8, 35078050), (10, 28062440), (14, 20044600), (16, 17539025), (20, 14031220), (25, 11224976), (28, 10022300), (31, 9052400), (35, 8017840), (40, 7015610), (50, 5612488), (53, 5294800), (56, 5011150), (61, 4600400), (62, 4526200), (70, 4008920), (80, 3507805), (100, 2806244), (106, 2647400), (112, 2505575), (122, 2300200), (124, 2263100), (140, 2004460), (155, 1810480), (175, 1603568), (200, 1403122), (212, 1323700), (217, 1293200), (244, 1150100), (248, 1131550), (265, 1058960), (280, 1002230), (305, 920080), (310, 905240), (350, 801784), (371, 756400), (400, 701561), (424, 661850), (427, 657200), (434, 646600), (488, 575050), (496, 565775), (530, 529480), (560, 501115), (610, 460040), (620, 452620), (700, 400892), (742, 378200), (775, 362096), (848, 330925), (854, 328600), (868, 323300), (976, 287525), (1060, 264740), (1085, 258640), (1220, 230020), (1240, 226310), (1325, 211792), (1400, 200446), (1484, 189100), (1525, 184016), (1550, 181048), (1643, 170800), (1708, 164300), (1736, 161650), (1855, 151280), (1891, 148400), (2120, 132370), (2135, 131440), (2170, 129320), (2440, 115010), (2480, 113155), (2650, 105896), (2800, 100223), (2968, 94550), (3050, 92008), (3100, 90524), (3233, 86800), (3286, 85400), (3416, 82150), (3472, 80825), (3710, 75640), (3782, 74200), (4240, 66185), (4270, 65720), (4340, 64660), (4880, 57505), (5300, 52948), (5425, 51728), (5936, 47275), (6100, 46004), (6200, 45262), (6466, 43400), (6572, 42700), (6832, 41075), (7420, 37820), (7564, 37100), (8215, 34160), (8540, 32860), (8680, 32330), (9275, 30256), (9455, 29680), (10600, 26474), (10675, 26288), (10850, 25864), (11501, 24400), (12200, 23002), (12400, 22631), (12932, 21700), (13144, 21350), (13237, 21200), (14840, 18910), (15128, 18550), (16165, 17360), (16430, 17080)]