208728520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:456

約数の個数: 192

約数和(自身を含む): 635610240

約数和(自身を除く): 426881720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 169, 182, 220, 260, 280, 286, 308, 338, 364, 385, 401, 440, 455, 520, 572, 616, 676, 715, 728, 770, 802, 845, 910, 1001, 1144, 1183, 1352, 1430, 1540, 1604, 1690, 1820, 1859, 2002, 2005, 2366, 2807, 2860, 3080, 3208, 3380, 3640, 3718, 4004, 4010, 4411, 4732, 5005, 5213, 5614, 5720, 5915, 6760, 7436, 8008, 8020, 8822, 9295, 9464, 10010, 10426, 11228, 11830, 13013, 14035, 14872, 16040, 17644, 18590, 20020, 20852, 22055, 22456, 23660, 26026, 26065, 28070, 30877, 35288, 36491, 37180, 40040, 41704, 44110, 47320, 52052, 52130, 56140, 57343, 61754, 65065, 67769, 72982, 74360, 88220, 104104, 104260, 112280, 114686, 123508, 130130, 135538, 145964, 154385, 176440, 182455, 208520, 229372, 247016, 260260, 271076, 286715, 291928, 308770, 338845, 364910, 401401, 458744, 474383, 520520, 542152, 573430, 617540, 677690, 729820, 745459, 802802, 948766, 1146860, 1235080, 1355380, 1459640, 1490918, 1605604, 1897532, 2007005, 2293720, 2371915, 2710760, 2981836, 3211208, 3727295, 3795064, 4014010, 4743830, 5218213, 5963672, 7454590, 8028020, 9487660, 10436426, 14909180, 16056040, 18975320, 20872852, 26091065, 29818360, 41745704, 52182130, 104364260, 208728520]

約数ペア:

[(1, 208728520), (2, 104364260), (4, 52182130), (5, 41745704), (7, 29818360), (8, 26091065), (10, 20872852), (11, 18975320), (13, 16056040), (14, 14909180), (20, 10436426), (22, 9487660), (26, 8028020), (28, 7454590), (35, 5963672), (40, 5218213), (44, 4743830), (52, 4014010), (55, 3795064), (56, 3727295), (65, 3211208), (70, 2981836), (77, 2710760), (88, 2371915), (91, 2293720), (104, 2007005), (110, 1897532), (130, 1605604), (140, 1490918), (143, 1459640), (154, 1355380), (169, 1235080), (182, 1146860), (220, 948766), (260, 802802), (280, 745459), (286, 729820), (308, 677690), (338, 617540), (364, 573430), (385, 542152), (401, 520520), (440, 474383), (455, 458744), (520, 401401), (572, 364910), (616, 338845), (676, 308770), (715, 291928), (728, 286715), (770, 271076), (802, 260260), (845, 247016), (910, 229372), (1001, 208520), (1144, 182455), (1183, 176440), (1352, 154385), (1430, 145964), (1540, 135538), (1604, 130130), (1690, 123508), (1820, 114686), (1859, 112280), (2002, 104260), (2005, 104104), (2366, 88220), (2807, 74360), (2860, 72982), (3080, 67769), (3208, 65065), (3380, 61754), (3640, 57343), (3718, 56140), (4004, 52130), (4010, 52052), (4411, 47320), (4732, 44110), (5005, 41704), (5213, 40040), (5614, 37180), (5720, 36491), (5915, 35288), (6760, 30877), (7436, 28070), (8008, 26065), (8020, 26026), (8822, 23660), (9295, 22456), (9464, 22055), (10010, 20852), (10426, 20020), (11228, 18590), (11830, 17644), (13013, 16040), (14035, 14872)]