217289380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 583446528

約数和(自身を除く): 366157148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 121, 127, 140, 154, 202, 220, 242, 254, 308, 385, 404, 484, 505, 508, 605, 635, 707, 770, 847, 889, 1010, 1111, 1210, 1270, 1397, 1414, 1540, 1694, 1778, 2020, 2222, 2420, 2540, 2794, 2828, 3388, 3535, 3556, 4235, 4444, 4445, 5555, 5588, 6985, 7070, 7777, 8470, 8890, 9779, 11110, 12221, 12827, 13970, 14140, 15367, 15554, 16940, 17780, 19558, 22220, 24442, 25654, 27940, 30734, 31108, 38885, 39116, 48884, 48895, 51308, 61105, 61468, 64135, 76835, 77770, 85547, 89789, 97790, 107569, 122210, 128270, 141097, 153670, 155540, 171094, 179578, 195580, 215138, 244420, 256540, 282194, 307340, 342188, 359156, 427735, 430276, 448945, 537845, 564388, 705485, 855470, 897890, 987679, 1075690, 1410970, 1552067, 1710940, 1795780, 1975358, 2151380, 2821940, 3104134, 3950716, 4938395, 6208268, 7760335, 9876790, 10864469, 15520670, 19753580, 21728938, 31041340, 43457876, 54322345, 108644690, 217289380]

約数ペア:

[(1, 217289380), (2, 108644690), (4, 54322345), (5, 43457876), (7, 31041340), (10, 21728938), (11, 19753580), (14, 15520670), (20, 10864469), (22, 9876790), (28, 7760335), (35, 6208268), (44, 4938395), (55, 3950716), (70, 3104134), (77, 2821940), (101, 2151380), (110, 1975358), (121, 1795780), (127, 1710940), (140, 1552067), (154, 1410970), (202, 1075690), (220, 987679), (242, 897890), (254, 855470), (308, 705485), (385, 564388), (404, 537845), (484, 448945), (505, 430276), (508, 427735), (605, 359156), (635, 342188), (707, 307340), (770, 282194), (847, 256540), (889, 244420), (1010, 215138), (1111, 195580), (1210, 179578), (1270, 171094), (1397, 155540), (1414, 153670), (1540, 141097), (1694, 128270), (1778, 122210), (2020, 107569), (2222, 97790), (2420, 89789), (2540, 85547), (2794, 77770), (2828, 76835), (3388, 64135), (3535, 61468), (3556, 61105), (4235, 51308), (4444, 48895), (4445, 48884), (5555, 39116), (5588, 38885), (6985, 31108), (7070, 30734), (7777, 27940), (8470, 25654), (8890, 24442), (9779, 22220), (11110, 19558), (12221, 17780), (12827, 16940), (13970, 15554), (14140, 15367)]