20679360

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1657}}^1$

素因数の和:1690

約数の個数: 112

約数和(自身を含む): 70750176

約数和(自身を除く): 50070816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 1657, 2080, 2496, 3120, 3314, 4160, 4971, 6240, 6628, 8285, 9942, 12480, 13256, 16570, 19884, 21541, 24855, 26512, 33140, 39768, 43082, 49710, 53024, 64623, 66280, 79536, 86164, 99420, 106048, 107705, 129246, 132560, 159072, 172328, 198840, 215410, 258492, 265120, 318144, 323115, 344656, 397680, 430820, 516984, 530240, 646230, 689312, 795360, 861640, 1033968, 1292460, 1378624, 1590720, 1723280, 2067936, 2584920, 3446560, 4135872, 5169840, 6893120, 10339680, 20679360]

約数ペア:

[(1, 20679360), (2, 10339680), (3, 6893120), (4, 5169840), (5, 4135872), (6, 3446560), (8, 2584920), (10, 2067936), (12, 1723280), (13, 1590720), (15, 1378624), (16, 1292460), (20, 1033968), (24, 861640), (26, 795360), (30, 689312), (32, 646230), (39, 530240), (40, 516984), (48, 430820), (52, 397680), (60, 344656), (64, 323115), (65, 318144), (78, 265120), (80, 258492), (96, 215410), (104, 198840), (120, 172328), (130, 159072), (156, 132560), (160, 129246), (192, 107705), (195, 106048), (208, 99420), (240, 86164), (260, 79536), (312, 66280), (320, 64623), (390, 53024), (416, 49710), (480, 43082), (520, 39768), (624, 33140), (780, 26512), (832, 24855), (960, 21541), (1040, 19884), (1248, 16570), (1560, 13256), (1657, 12480), (2080, 9942), (2496, 8285), (3120, 6628), (3314, 6240), (4160, 4971)]