56391920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 146771856

約数和(自身を除く): 90379936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 97, 104, 130, 169, 172, 194, 208, 215, 260, 338, 344, 388, 430, 485, 520, 559, 676, 688, 776, 845, 860, 970, 1040, 1118, 1261, 1352, 1552, 1690, 1720, 1940, 2236, 2522, 2704, 2795, 3380, 3440, 3880, 4171, 4472, 5044, 5590, 6305, 6760, 7267, 7760, 8342, 8944, 10088, 11180, 12610, 13520, 14534, 16393, 16684, 20176, 20855, 22360, 25220, 29068, 32786, 33368, 36335, 41710, 44720, 50440, 54223, 58136, 65572, 66736, 72670, 81965, 83420, 100880, 108446, 116272, 131144, 145340, 163930, 166840, 216892, 262288, 271115, 290680, 327860, 333680, 433784, 542230, 581360, 655720, 704899, 867568, 1084460, 1311440, 1409798, 2168920, 2819596, 3524495, 4337840, 5639192, 7048990, 11278384, 14097980, 28195960, 56391920]

約数ペア:

[(1, 56391920), (2, 28195960), (4, 14097980), (5, 11278384), (8, 7048990), (10, 5639192), (13, 4337840), (16, 3524495), (20, 2819596), (26, 2168920), (40, 1409798), (43, 1311440), (52, 1084460), (65, 867568), (80, 704899), (86, 655720), (97, 581360), (104, 542230), (130, 433784), (169, 333680), (172, 327860), (194, 290680), (208, 271115), (215, 262288), (260, 216892), (338, 166840), (344, 163930), (388, 145340), (430, 131144), (485, 116272), (520, 108446), (559, 100880), (676, 83420), (688, 81965), (776, 72670), (845, 66736), (860, 65572), (970, 58136), (1040, 54223), (1118, 50440), (1261, 44720), (1352, 41710), (1552, 36335), (1690, 33368), (1720, 32786), (1940, 29068), (2236, 25220), (2522, 22360), (2704, 20855), (2795, 20176), (3380, 16684), (3440, 16393), (3880, 14534), (4171, 13520), (4472, 12610), (5044, 11180), (5590, 10088), (6305, 8944), (6760, 8342), (7267, 7760)]