20614880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:109

約数の個数: 192

約数和(自身を含む): 61725888

約数和(自身を除く): 41111008

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 32, 34, 40, 44, 52, 53, 55, 65, 68, 80, 85, 88, 104, 106, 110, 130, 136, 143, 160, 170, 176, 187, 208, 212, 220, 221, 260, 265, 272, 286, 340, 352, 374, 416, 424, 440, 442, 520, 530, 544, 572, 583, 680, 689, 715, 748, 848, 880, 884, 901, 935, 1040, 1060, 1105, 1144, 1166, 1360, 1378, 1430, 1496, 1696, 1760, 1768, 1802, 1870, 2080, 2120, 2210, 2288, 2332, 2431, 2720, 2756, 2860, 2915, 2992, 3445, 3536, 3604, 3740, 4240, 4420, 4505, 4576, 4664, 4862, 5512, 5720, 5830, 5984, 6890, 7072, 7208, 7480, 7579, 8480, 8840, 9010, 9328, 9724, 9911, 11024, 11440, 11660, 11713, 12155, 13780, 14416, 14960, 15158, 17680, 18020, 18656, 19448, 19822, 22048, 22880, 23320, 23426, 24310, 27560, 28832, 29920, 30316, 35360, 36040, 37895, 38896, 39644, 46640, 46852, 48620, 49555, 55120, 58565, 60632, 72080, 75790, 77792, 79288, 93280, 93704, 97240, 99110, 110240, 117130, 121264, 128843, 144160, 151580, 158576, 187408, 194480, 198220, 234260, 242528, 257686, 303160, 317152, 374816, 388960, 396440, 468520, 515372, 606320, 644215, 792880, 937040, 1030744, 1212640, 1288430, 1585760, 1874080, 2061488, 2576860, 4122976, 5153720, 10307440, 20614880]

約数ペア:

[(1, 20614880), (2, 10307440), (4, 5153720), (5, 4122976), (8, 2576860), (10, 2061488), (11, 1874080), (13, 1585760), (16, 1288430), (17, 1212640), (20, 1030744), (22, 937040), (26, 792880), (32, 644215), (34, 606320), (40, 515372), (44, 468520), (52, 396440), (53, 388960), (55, 374816), (65, 317152), (68, 303160), (80, 257686), (85, 242528), (88, 234260), (104, 198220), (106, 194480), (110, 187408), (130, 158576), (136, 151580), (143, 144160), (160, 128843), (170, 121264), (176, 117130), (187, 110240), (208, 99110), (212, 97240), (220, 93704), (221, 93280), (260, 79288), (265, 77792), (272, 75790), (286, 72080), (340, 60632), (352, 58565), (374, 55120), (416, 49555), (424, 48620), (440, 46852), (442, 46640), (520, 39644), (530, 38896), (544, 37895), (572, 36040), (583, 35360), (680, 30316), (689, 29920), (715, 28832), (748, 27560), (848, 24310), (880, 23426), (884, 23320), (901, 22880), (935, 22048), (1040, 19822), (1060, 19448), (1105, 18656), (1144, 18020), (1166, 17680), (1360, 15158), (1378, 14960), (1430, 14416), (1496, 13780), (1696, 12155), (1760, 11713), (1768, 11660), (1802, 11440), (1870, 11024), (2080, 9911), (2120, 9724), (2210, 9328), (2288, 9010), (2332, 8840), (2431, 8480), (2720, 7579), (2756, 7480), (2860, 7208), (2915, 7072), (2992, 6890), (3445, 5984), (3536, 5830), (3604, 5720), (3740, 5512), (4240, 4862), (4420, 4664), (4505, 4576)]