20451831480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{3163}}^1\times {\mathrm{5987}}^1$

素因数の和:9170

約数の個数: 128

約数和(自身を含む): 68205715200

約数和(自身を除く): 47753883720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 3163, 5987, 6326, 9489, 11974, 12652, 15815, 17961, 18978, 23948, 25304, 28467, 29935, 31630, 35922, 37956, 47445, 47896, 53883, 56934, 59870, 63260, 71844, 75912, 85401, 89805, 94890, 107766, 113868, 119740, 126520, 142335, 143688, 161649, 170802, 179610, 189780, 215532, 227736, 239480, 269415, 284670, 323298, 341604, 359220, 379560, 427005, 431064, 538830, 569340, 646596, 683208, 718440, 808245, 854010, 1077660, 1138680, 1293192, 1616490, 1708020, 2155320, 3232980, 3416040, 6465960, 18936881, 37873762, 56810643, 75747524, 94684405, 113621286, 151495048, 170431929, 189368810, 227242572, 284053215, 340863858, 378737620, 454485144, 511295787, 568106430, 681727716, 757475240, 852159645, 1022591574, 1136212860, 1363455432, 1704319290, 2045183148, 2272425720, 2556478935, 3408638580, 4090366296, 5112957870, 6817277160, 10225915740, 20451831480]

約数ペア:

[(1, 20451831480), (2, 10225915740), (3, 6817277160), (4, 5112957870), (5, 4090366296), (6, 3408638580), (8, 2556478935), (9, 2272425720), (10, 2045183148), (12, 1704319290), (15, 1363455432), (18, 1136212860), (20, 1022591574), (24, 852159645), (27, 757475240), (30, 681727716), (36, 568106430), (40, 511295787), (45, 454485144), (54, 378737620), (60, 340863858), (72, 284053215), (90, 227242572), (108, 189368810), (120, 170431929), (135, 151495048), (180, 113621286), (216, 94684405), (270, 75747524), (360, 56810643), (540, 37873762), (1080, 18936881), (3163, 6465960), (5987, 3416040), (6326, 3232980), (9489, 2155320), (11974, 1708020), (12652, 1616490), (15815, 1293192), (17961, 1138680), (18978, 1077660), (23948, 854010), (25304, 808245), (28467, 718440), (29935, 683208), (31630, 646596), (35922, 569340), (37956, 538830), (47445, 431064), (47896, 427005), (53883, 379560), (56934, 359220), (59870, 341604), (63260, 323298), (71844, 284670), (75912, 269415), (85401, 239480), (89805, 227736), (94890, 215532), (107766, 189780), (113868, 179610), (119740, 170802), (126520, 161649), (142335, 143688)]