20700680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:100

約数の個数: 192

約数和(自身を含む): 64350720

約数和(自身を除く): 43650040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 47, 52, 55, 56, 65, 70, 77, 88, 91, 94, 104, 110, 121, 130, 140, 143, 154, 182, 188, 220, 235, 242, 260, 280, 286, 308, 329, 364, 376, 385, 440, 455, 470, 484, 517, 520, 572, 605, 611, 616, 658, 715, 728, 770, 847, 910, 940, 968, 1001, 1034, 1144, 1210, 1222, 1316, 1430, 1540, 1573, 1645, 1694, 1820, 1880, 2002, 2068, 2420, 2444, 2585, 2632, 2860, 3055, 3080, 3146, 3290, 3388, 3619, 3640, 4004, 4136, 4235, 4277, 4840, 4888, 5005, 5170, 5687, 5720, 6110, 6292, 6580, 6721, 6776, 7238, 7865, 8008, 8470, 8554, 10010, 10340, 11011, 11374, 12220, 12584, 13160, 13442, 14476, 15730, 16940, 17108, 18095, 20020, 20680, 21385, 22022, 22748, 24440, 26884, 28435, 28952, 31460, 33605, 33880, 34216, 36190, 39809, 40040, 42770, 44044, 45496, 47047, 53768, 55055, 56870, 62920, 67210, 72380, 73931, 79618, 85540, 88088, 94094, 110110, 113740, 134420, 144760, 147862, 159236, 171080, 188188, 199045, 220220, 227480, 235235, 268840, 295724, 318472, 369655, 376376, 398090, 440440, 470470, 517517, 591448, 739310, 796180, 940940, 1035034, 1478620, 1592360, 1881880, 2070068, 2587585, 2957240, 4140136, 5175170, 10350340, 20700680]

約数ペア:

[(1, 20700680), (2, 10350340), (4, 5175170), (5, 4140136), (7, 2957240), (8, 2587585), (10, 2070068), (11, 1881880), (13, 1592360), (14, 1478620), (20, 1035034), (22, 940940), (26, 796180), (28, 739310), (35, 591448), (40, 517517), (44, 470470), (47, 440440), (52, 398090), (55, 376376), (56, 369655), (65, 318472), (70, 295724), (77, 268840), (88, 235235), (91, 227480), (94, 220220), (104, 199045), (110, 188188), (121, 171080), (130, 159236), (140, 147862), (143, 144760), (154, 134420), (182, 113740), (188, 110110), (220, 94094), (235, 88088), (242, 85540), (260, 79618), (280, 73931), (286, 72380), (308, 67210), (329, 62920), (364, 56870), (376, 55055), (385, 53768), (440, 47047), (455, 45496), (470, 44044), (484, 42770), (517, 40040), (520, 39809), (572, 36190), (605, 34216), (611, 33880), (616, 33605), (658, 31460), (715, 28952), (728, 28435), (770, 26884), (847, 24440), (910, 22748), (940, 22022), (968, 21385), (1001, 20680), (1034, 20020), (1144, 18095), (1210, 17108), (1222, 16940), (1316, 15730), (1430, 14476), (1540, 13442), (1573, 13160), (1645, 12584), (1694, 12220), (1820, 11374), (1880, 11011), (2002, 10340), (2068, 10010), (2420, 8554), (2444, 8470), (2585, 8008), (2632, 7865), (2860, 7238), (3055, 6776), (3080, 6721), (3146, 6580), (3290, 6292), (3388, 6110), (3619, 5720), (3640, 5687), (4004, 5170), (4136, 5005), (4235, 4888), (4277, 4840)]