205995720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{12907}}^1$

素因数の和:12947

約数の個数: 128

約数和(自身を含む): 743500800

約数和(自身を除く): 537505080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 12907, 15960, 25814, 38721, 51628, 64535, 77442, 90349, 103256, 129070, 154884, 180698, 193605, 245233, 258140, 271047, 309768, 361396, 387210, 451745, 490466, 516280, 542094, 722792, 735699, 774420, 903490, 980932, 1084188, 1226165, 1355235, 1471398, 1548840, 1716631, 1806980, 1961864, 2168376, 2452330, 2710470, 2942796, 3433262, 3613960, 3678495, 4904660, 5149893, 5420940, 5885592, 6866524, 7356990, 8583155, 9809320, 10299786, 10841880, 13733048, 14713980, 17166310, 20599572, 25749465, 29427960, 34332620, 41199144, 51498930, 68665240, 102997860, 205995720]

約数ペア:

[(1, 205995720), (2, 102997860), (3, 68665240), (4, 51498930), (5, 41199144), (6, 34332620), (7, 29427960), (8, 25749465), (10, 20599572), (12, 17166310), (14, 14713980), (15, 13733048), (19, 10841880), (20, 10299786), (21, 9809320), (24, 8583155), (28, 7356990), (30, 6866524), (35, 5885592), (38, 5420940), (40, 5149893), (42, 4904660), (56, 3678495), (57, 3613960), (60, 3433262), (70, 2942796), (76, 2710470), (84, 2452330), (95, 2168376), (105, 1961864), (114, 1806980), (120, 1716631), (133, 1548840), (140, 1471398), (152, 1355235), (168, 1226165), (190, 1084188), (210, 980932), (228, 903490), (266, 774420), (280, 735699), (285, 722792), (380, 542094), (399, 516280), (420, 490466), (456, 451745), (532, 387210), (570, 361396), (665, 309768), (760, 271047), (798, 258140), (840, 245233), (1064, 193605), (1140, 180698), (1330, 154884), (1596, 129070), (1995, 103256), (2280, 90349), (2660, 77442), (3192, 64535), (3990, 51628), (5320, 38721), (7980, 25814), (12907, 15960)]