820130640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{69739}}^1$

素因数の和:69769

約数の個数: 120

約数和(自身を含む): 2957533920

約数和(自身を除く): 2137403280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 69739, 139478, 209217, 278956, 348695, 418434, 488173, 557912, 697390, 836868, 976346, 1046085, 1115824, 1394780, 1464519, 1673736, 1952692, 2092170, 2440865, 2789560, 2929038, 3347472, 3417211, 3905384, 4184340, 4881730, 5579120, 5858076, 6834422, 7322595, 7810768, 8368680, 9763460, 10251633, 11716152, 13668844, 14645190, 16737360, 17086055, 19526920, 20503266, 23432304, 27337688, 29290380, 34172110, 39053840, 41006532, 51258165, 54675376, 58580760, 68344220, 82013064, 102516330, 117161520, 136688440, 164026128, 205032660, 273376880, 410065320, 820130640]

約数ペア:

[(1, 820130640), (2, 410065320), (3, 273376880), (4, 205032660), (5, 164026128), (6, 136688440), (7, 117161520), (8, 102516330), (10, 82013064), (12, 68344220), (14, 58580760), (15, 54675376), (16, 51258165), (20, 41006532), (21, 39053840), (24, 34172110), (28, 29290380), (30, 27337688), (35, 23432304), (40, 20503266), (42, 19526920), (48, 17086055), (49, 16737360), (56, 14645190), (60, 13668844), (70, 11716152), (80, 10251633), (84, 9763460), (98, 8368680), (105, 7810768), (112, 7322595), (120, 6834422), (140, 5858076), (147, 5579120), (168, 4881730), (196, 4184340), (210, 3905384), (240, 3417211), (245, 3347472), (280, 2929038), (294, 2789560), (336, 2440865), (392, 2092170), (420, 1952692), (490, 1673736), (560, 1464519), (588, 1394780), (735, 1115824), (784, 1046085), (840, 976346), (980, 836868), (1176, 697390), (1470, 557912), (1680, 488173), (1960, 418434), (2352, 348695), (2940, 278956), (3920, 209217), (5880, 139478), (11760, 69739)]