206499680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 144

約数和(自身を含む): 540509760

約数和(自身を除く): 334010080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 79, 80, 85, 124, 136, 155, 158, 160, 170, 248, 272, 310, 316, 340, 395, 496, 527, 544, 620, 632, 680, 790, 961, 992, 1054, 1240, 1264, 1343, 1360, 1580, 1922, 2108, 2449, 2480, 2528, 2635, 2686, 2720, 3160, 3844, 4216, 4805, 4898, 4960, 5270, 5372, 6320, 6715, 7688, 8432, 9610, 9796, 10540, 10744, 12245, 12640, 13430, 15376, 16337, 16864, 19220, 19592, 21080, 21488, 24490, 26860, 30752, 32674, 38440, 39184, 41633, 42160, 42976, 48980, 53720, 65348, 75919, 76880, 78368, 81685, 83266, 84320, 97960, 107440, 130696, 151838, 153760, 163370, 166532, 195920, 208165, 214880, 261392, 303676, 326740, 333064, 379595, 391840, 416330, 522784, 607352, 653480, 666128, 759190, 832660, 1214704, 1290623, 1306960, 1332256, 1518380, 1665320, 2429408, 2581246, 2613920, 3036760, 3330640, 5162492, 6073520, 6453115, 6661280, 10324984, 12147040, 12906230, 20649968, 25812460, 41299936, 51624920, 103249840, 206499680]

約数ペア:

[(1, 206499680), (2, 103249840), (4, 51624920), (5, 41299936), (8, 25812460), (10, 20649968), (16, 12906230), (17, 12147040), (20, 10324984), (31, 6661280), (32, 6453115), (34, 6073520), (40, 5162492), (62, 3330640), (68, 3036760), (79, 2613920), (80, 2581246), (85, 2429408), (124, 1665320), (136, 1518380), (155, 1332256), (158, 1306960), (160, 1290623), (170, 1214704), (248, 832660), (272, 759190), (310, 666128), (316, 653480), (340, 607352), (395, 522784), (496, 416330), (527, 391840), (544, 379595), (620, 333064), (632, 326740), (680, 303676), (790, 261392), (961, 214880), (992, 208165), (1054, 195920), (1240, 166532), (1264, 163370), (1343, 153760), (1360, 151838), (1580, 130696), (1922, 107440), (2108, 97960), (2449, 84320), (2480, 83266), (2528, 81685), (2635, 78368), (2686, 76880), (2720, 75919), (3160, 65348), (3844, 53720), (4216, 48980), (4805, 42976), (4898, 42160), (4960, 41633), (5270, 39184), (5372, 38440), (6320, 32674), (6715, 30752), (7688, 26860), (8432, 24490), (9610, 21488), (9796, 21080), (10540, 19592), (10744, 19220), (12245, 16864), (12640, 16337), (13430, 15376)]