205867900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 539965440

約数和(自身を除く): 334097540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 53, 62, 70, 100, 106, 124, 140, 155, 175, 179, 212, 217, 265, 310, 350, 358, 371, 434, 530, 620, 700, 716, 742, 775, 868, 895, 1060, 1085, 1253, 1325, 1484, 1550, 1643, 1790, 1855, 2170, 2506, 2650, 3100, 3286, 3580, 3710, 4340, 4475, 5012, 5300, 5425, 5549, 6265, 6572, 7420, 8215, 8950, 9275, 9487, 10850, 11098, 11501, 12530, 16430, 17900, 18550, 18974, 21700, 22196, 23002, 25060, 27745, 31325, 32860, 37100, 37948, 38843, 41075, 46004, 47435, 55490, 57505, 62650, 66409, 77686, 82150, 94870, 110980, 115010, 125300, 132818, 138725, 155372, 164300, 189740, 194215, 230020, 237175, 265636, 277450, 287525, 294097, 332045, 388430, 474350, 554900, 575050, 588194, 664090, 776860, 948700, 971075, 1150100, 1176388, 1328180, 1470485, 1660225, 1942150, 2058679, 2940970, 3320450, 3884300, 4117358, 5881940, 6640900, 7352425, 8234716, 10293395, 14704850, 20586790, 29409700, 41173580, 51466975, 102933950, 205867900]

約数ペア:

[(1, 205867900), (2, 102933950), (4, 51466975), (5, 41173580), (7, 29409700), (10, 20586790), (14, 14704850), (20, 10293395), (25, 8234716), (28, 7352425), (31, 6640900), (35, 5881940), (50, 4117358), (53, 3884300), (62, 3320450), (70, 2940970), (100, 2058679), (106, 1942150), (124, 1660225), (140, 1470485), (155, 1328180), (175, 1176388), (179, 1150100), (212, 971075), (217, 948700), (265, 776860), (310, 664090), (350, 588194), (358, 575050), (371, 554900), (434, 474350), (530, 388430), (620, 332045), (700, 294097), (716, 287525), (742, 277450), (775, 265636), (868, 237175), (895, 230020), (1060, 194215), (1085, 189740), (1253, 164300), (1325, 155372), (1484, 138725), (1550, 132818), (1643, 125300), (1790, 115010), (1855, 110980), (2170, 94870), (2506, 82150), (2650, 77686), (3100, 66409), (3286, 62650), (3580, 57505), (3710, 55490), (4340, 47435), (4475, 46004), (5012, 41075), (5300, 38843), (5425, 37948), (5549, 37100), (6265, 32860), (6572, 31325), (7420, 27745), (8215, 25060), (8950, 23002), (9275, 22196), (9487, 21700), (10850, 18974), (11098, 18550), (11501, 17900), (12530, 16430)]