20846880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:519

約数の個数: 144

約数和(自身を含む): 73592064

約数和(自身を除く): 52745184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 467, 480, 496, 558, 620, 720, 744, 930, 934, 992, 1116, 1240, 1395, 1401, 1440, 1488, 1860, 1868, 2232, 2335, 2480, 2790, 2802, 2976, 3720, 3736, 4203, 4464, 4670, 4960, 5580, 5604, 7005, 7440, 7472, 8406, 8928, 9340, 11160, 11208, 14010, 14477, 14880, 14944, 16812, 18680, 21015, 22320, 22416, 28020, 28954, 33624, 37360, 42030, 43431, 44640, 44832, 56040, 57908, 67248, 72385, 74720, 84060, 86862, 112080, 115816, 130293, 134496, 144770, 168120, 173724, 217155, 224160, 231632, 260586, 289540, 336240, 347448, 434310, 463264, 521172, 579080, 651465, 672480, 694896, 868620, 1042344, 1158160, 1302930, 1389792, 1737240, 2084688, 2316320, 2605860, 3474480, 4169376, 5211720, 6948960, 10423440, 20846880]

約数ペア:

[(1, 20846880), (2, 10423440), (3, 6948960), (4, 5211720), (5, 4169376), (6, 3474480), (8, 2605860), (9, 2316320), (10, 2084688), (12, 1737240), (15, 1389792), (16, 1302930), (18, 1158160), (20, 1042344), (24, 868620), (30, 694896), (31, 672480), (32, 651465), (36, 579080), (40, 521172), (45, 463264), (48, 434310), (60, 347448), (62, 336240), (72, 289540), (80, 260586), (90, 231632), (93, 224160), (96, 217155), (120, 173724), (124, 168120), (144, 144770), (155, 134496), (160, 130293), (180, 115816), (186, 112080), (240, 86862), (248, 84060), (279, 74720), (288, 72385), (310, 67248), (360, 57908), (372, 56040), (465, 44832), (467, 44640), (480, 43431), (496, 42030), (558, 37360), (620, 33624), (720, 28954), (744, 28020), (930, 22416), (934, 22320), (992, 21015), (1116, 18680), (1240, 16812), (1395, 14944), (1401, 14880), (1440, 14477), (1488, 14010), (1860, 11208), (1868, 11160), (2232, 9340), (2335, 8928), (2480, 8406), (2790, 7472), (2802, 7440), (2976, 7005), (3720, 5604), (3736, 5580), (4203, 4960), (4464, 4670)]