205081240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:681

約数の個数: 128

約数和(自身を含む): 574479360

約数和(自身を除く): 369398120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 103, 104, 130, 140, 182, 206, 260, 280, 364, 412, 455, 515, 520, 547, 721, 728, 824, 910, 1030, 1094, 1339, 1442, 1820, 2060, 2188, 2678, 2735, 2884, 3605, 3640, 3829, 4120, 4376, 5356, 5470, 5768, 6695, 7111, 7210, 7658, 9373, 10712, 10940, 13390, 14222, 14420, 15316, 18746, 19145, 21880, 26780, 28444, 28840, 30632, 35555, 37492, 38290, 46865, 49777, 53560, 56341, 56888, 71110, 74984, 76580, 93730, 99554, 112682, 142220, 153160, 187460, 199108, 225364, 248885, 281705, 284440, 374920, 394387, 398216, 450728, 497770, 563410, 732433, 788774, 995540, 1126820, 1464866, 1577548, 1971935, 1991080, 2253640, 2929732, 3155096, 3662165, 3943870, 5127031, 5859464, 7324330, 7887740, 10254062, 14648660, 15775480, 20508124, 25635155, 29297320, 41016248, 51270310, 102540620, 205081240]

約数ペア:

[(1, 205081240), (2, 102540620), (4, 51270310), (5, 41016248), (7, 29297320), (8, 25635155), (10, 20508124), (13, 15775480), (14, 14648660), (20, 10254062), (26, 7887740), (28, 7324330), (35, 5859464), (40, 5127031), (52, 3943870), (56, 3662165), (65, 3155096), (70, 2929732), (91, 2253640), (103, 1991080), (104, 1971935), (130, 1577548), (140, 1464866), (182, 1126820), (206, 995540), (260, 788774), (280, 732433), (364, 563410), (412, 497770), (455, 450728), (515, 398216), (520, 394387), (547, 374920), (721, 284440), (728, 281705), (824, 248885), (910, 225364), (1030, 199108), (1094, 187460), (1339, 153160), (1442, 142220), (1820, 112682), (2060, 99554), (2188, 93730), (2678, 76580), (2735, 74984), (2884, 71110), (3605, 56888), (3640, 56341), (3829, 53560), (4120, 49777), (4376, 46865), (5356, 38290), (5470, 37492), (5768, 35555), (6695, 30632), (7111, 28840), (7210, 28444), (7658, 26780), (9373, 21880), (10712, 19145), (10940, 18746), (13390, 15316), (14222, 14420)]