20659860

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:149

約数の個数: 168

約数和(自身を含む): 70695240

約数和(自身を除く): 50035380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 109, 117, 130, 135, 156, 162, 180, 195, 218, 234, 243, 260, 270, 324, 327, 351, 390, 405, 436, 468, 486, 540, 545, 585, 654, 702, 729, 780, 810, 972, 981, 1053, 1090, 1170, 1215, 1308, 1404, 1417, 1458, 1620, 1635, 1755, 1962, 2106, 2180, 2340, 2430, 2834, 2916, 2943, 3159, 3270, 3510, 3645, 3924, 4212, 4251, 4860, 4905, 5265, 5668, 5886, 6318, 6540, 7020, 7085, 7290, 8502, 8829, 9477, 9810, 10530, 11772, 12636, 12753, 14170, 14580, 14715, 15795, 17004, 17658, 18954, 19620, 21060, 21255, 25506, 26487, 28340, 29430, 31590, 35316, 37908, 38259, 42510, 44145, 47385, 51012, 52974, 58860, 63180, 63765, 76518, 79461, 85020, 88290, 94770, 105948, 114777, 127530, 132435, 153036, 158922, 176580, 189540, 191295, 229554, 255060, 264870, 317844, 344331, 382590, 397305, 459108, 529740, 573885, 688662, 765180, 794610, 1032993, 1147770, 1377324, 1589220, 1721655, 2065986, 2295540, 3443310, 4131972, 5164965, 6886620, 10329930, 20659860]

約数ペア:

[(1, 20659860), (2, 10329930), (3, 6886620), (4, 5164965), (5, 4131972), (6, 3443310), (9, 2295540), (10, 2065986), (12, 1721655), (13, 1589220), (15, 1377324), (18, 1147770), (20, 1032993), (26, 794610), (27, 765180), (30, 688662), (36, 573885), (39, 529740), (45, 459108), (52, 397305), (54, 382590), (60, 344331), (65, 317844), (78, 264870), (81, 255060), (90, 229554), (108, 191295), (109, 189540), (117, 176580), (130, 158922), (135, 153036), (156, 132435), (162, 127530), (180, 114777), (195, 105948), (218, 94770), (234, 88290), (243, 85020), (260, 79461), (270, 76518), (324, 63765), (327, 63180), (351, 58860), (390, 52974), (405, 51012), (436, 47385), (468, 44145), (486, 42510), (540, 38259), (545, 37908), (585, 35316), (654, 31590), (702, 29430), (729, 28340), (780, 26487), (810, 25506), (972, 21255), (981, 21060), (1053, 19620), (1090, 18954), (1170, 17658), (1215, 17004), (1308, 15795), (1404, 14715), (1417, 14580), (1458, 14170), (1620, 12753), (1635, 12636), (1755, 11772), (1962, 10530), (2106, 9810), (2180, 9477), (2340, 8829), (2430, 8502), (2834, 7290), (2916, 7085), (2943, 7020), (3159, 6540), (3270, 6318), (3510, 5886), (3645, 5668), (3924, 5265), (4212, 4905), (4251, 4860)]