205655940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{3331}}^1$

素因数の和:3367

約数の個数: 144

約数和(自身を含む): 727708800

約数和(自身を除く): 522052860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2205, 2940, 3087, 3331, 3430, 4116, 4410, 5145, 6174, 6662, 6860, 8820, 9993, 10290, 12348, 13324, 15435, 16655, 19986, 20580, 23317, 29979, 30870, 33310, 39972, 46634, 49965, 59958, 61740, 66620, 69951, 93268, 99930, 116585, 119916, 139902, 149895, 163219, 199860, 209853, 233170, 279804, 299790, 326438, 349755, 419706, 466340, 489657, 599580, 652876, 699510, 816095, 839412, 979314, 1049265, 1142533, 1399020, 1468971, 1632190, 1958628, 2098530, 2285066, 2448285, 2937942, 3264380, 3427599, 4197060, 4570132, 4896570, 5712665, 5875884, 6855198, 7344855, 9793140, 10282797, 11425330, 13710396, 14689710, 17137995, 20565594, 22850660, 29379420, 34275990, 41131188, 51413985, 68551980, 102827970, 205655940]

約数ペア:

[(1, 205655940), (2, 102827970), (3, 68551980), (4, 51413985), (5, 41131188), (6, 34275990), (7, 29379420), (9, 22850660), (10, 20565594), (12, 17137995), (14, 14689710), (15, 13710396), (18, 11425330), (20, 10282797), (21, 9793140), (28, 7344855), (30, 6855198), (35, 5875884), (36, 5712665), (42, 4896570), (45, 4570132), (49, 4197060), (60, 3427599), (63, 3264380), (70, 2937942), (84, 2448285), (90, 2285066), (98, 2098530), (105, 1958628), (126, 1632190), (140, 1468971), (147, 1399020), (180, 1142533), (196, 1049265), (210, 979314), (245, 839412), (252, 816095), (294, 699510), (315, 652876), (343, 599580), (420, 489657), (441, 466340), (490, 419706), (588, 349755), (630, 326438), (686, 299790), (735, 279804), (882, 233170), (980, 209853), (1029, 199860), (1260, 163219), (1372, 149895), (1470, 139902), (1715, 119916), (1764, 116585), (2058, 99930), (2205, 93268), (2940, 69951), (3087, 66620), (3331, 61740), (3430, 59958), (4116, 49965), (4410, 46634), (5145, 39972), (6174, 33310), (6662, 30870), (6860, 29979), (8820, 23317), (9993, 20580), (10290, 19986), (12348, 16655), (13324, 15435)]