205423360

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 108

約数和(自身を含む): 511482384

約数和(自身を除く): 306059024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 167, 248, 256, 310, 320, 334, 496, 620, 640, 668, 835, 961, 992, 1240, 1280, 1336, 1670, 1922, 1984, 2480, 2672, 3340, 3844, 3968, 4805, 4960, 5177, 5344, 6680, 7688, 7936, 9610, 9920, 10354, 10688, 13360, 15376, 19220, 19840, 20708, 21376, 25885, 26720, 30752, 38440, 39680, 41416, 42752, 51770, 53440, 61504, 76880, 82832, 103540, 106880, 123008, 153760, 160487, 165664, 207080, 213760, 246016, 307520, 320974, 331328, 414160, 615040, 641948, 662656, 802435, 828320, 1230080, 1283896, 1325312, 1604870, 1656640, 2567792, 3209740, 3313280, 5135584, 6419480, 6626560, 10271168, 12838960, 20542336, 25677920, 41084672, 51355840, 102711680, 205423360]

約数ペア:

[(1, 205423360), (2, 102711680), (4, 51355840), (5, 41084672), (8, 25677920), (10, 20542336), (16, 12838960), (20, 10271168), (31, 6626560), (32, 6419480), (40, 5135584), (62, 3313280), (64, 3209740), (80, 2567792), (124, 1656640), (128, 1604870), (155, 1325312), (160, 1283896), (167, 1230080), (248, 828320), (256, 802435), (310, 662656), (320, 641948), (334, 615040), (496, 414160), (620, 331328), (640, 320974), (668, 307520), (835, 246016), (961, 213760), (992, 207080), (1240, 165664), (1280, 160487), (1336, 153760), (1670, 123008), (1922, 106880), (1984, 103540), (2480, 82832), (2672, 76880), (3340, 61504), (3844, 53440), (3968, 51770), (4805, 42752), (4960, 41416), (5177, 39680), (5344, 38440), (6680, 30752), (7688, 26720), (7936, 25885), (9610, 21376), (9920, 20708), (10354, 19840), (10688, 19220), (13360, 15376)]