261437400

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{20749}}^1$

素因数の和:20778

約数の個数: 144

約数和(自身を含む): 1003470000

約数和(自身を除く): 742032600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1800, 2100, 2520, 3150, 4200, 6300, 12600, 20749, 41498, 62247, 82996, 103745, 124494, 145243, 165992, 186741, 207490, 248988, 290486, 311235, 373482, 414980, 435729, 497976, 518725, 580972, 622470, 726215, 746964, 829960, 871458, 933705, 1037450, 1161944, 1244940, 1307187, 1452430, 1493928, 1556175, 1742916, 1867410, 2074900, 2178645, 2489880, 2614374, 2904860, 3112350, 3485832, 3631075, 3734820, 4149800, 4357290, 4668525, 5228748, 5809720, 6224700, 6535935, 7262150, 7469640, 8714580, 9337050, 10457496, 10893225, 12449400, 13071870, 14524300, 17429160, 18674100, 21786450, 26143740, 29048600, 32679675, 37348200, 43572900, 52287480, 65359350, 87145800, 130718700, 261437400]

約数ペア:

[(1, 261437400), (2, 130718700), (3, 87145800), (4, 65359350), (5, 52287480), (6, 43572900), (7, 37348200), (8, 32679675), (9, 29048600), (10, 26143740), (12, 21786450), (14, 18674100), (15, 17429160), (18, 14524300), (20, 13071870), (21, 12449400), (24, 10893225), (25, 10457496), (28, 9337050), (30, 8714580), (35, 7469640), (36, 7262150), (40, 6535935), (42, 6224700), (45, 5809720), (50, 5228748), (56, 4668525), (60, 4357290), (63, 4149800), (70, 3734820), (72, 3631075), (75, 3485832), (84, 3112350), (90, 2904860), (100, 2614374), (105, 2489880), (120, 2178645), (126, 2074900), (140, 1867410), (150, 1742916), (168, 1556175), (175, 1493928), (180, 1452430), (200, 1307187), (210, 1244940), (225, 1161944), (252, 1037450), (280, 933705), (300, 871458), (315, 829960), (350, 746964), (360, 726215), (420, 622470), (450, 580972), (504, 518725), (525, 497976), (600, 435729), (630, 414980), (700, 373482), (840, 311235), (900, 290486), (1050, 248988), (1260, 207490), (1400, 186741), (1575, 165992), (1800, 145243), (2100, 124494), (2520, 103745), (3150, 82996), (4200, 62247), (6300, 41498), (12600, 20749)]