2720142840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{3169}}^1$

素因数の和:3517

約数の個数: 128

約数和(自身を含む): 8545305600

約数和(自身を除く): 5825162760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 311, 345, 460, 552, 622, 690, 920, 933, 1244, 1380, 1555, 1866, 2488, 2760, 3110, 3169, 3732, 4665, 6220, 6338, 7153, 7464, 9330, 9507, 12440, 12676, 14306, 15845, 18660, 19014, 21459, 25352, 28612, 31690, 35765, 37320, 38028, 42918, 47535, 57224, 63380, 71530, 72887, 76056, 85836, 95070, 107295, 126760, 143060, 145774, 171672, 190140, 214590, 218661, 286120, 291548, 364435, 380280, 429180, 437322, 583096, 728870, 858360, 874644, 985559, 1093305, 1457740, 1749288, 1971118, 2186610, 2915480, 2956677, 3942236, 4373220, 4927795, 5913354, 7884472, 8746440, 9855590, 11826708, 14783385, 19711180, 22667857, 23653416, 29566770, 39422360, 45335714, 59133540, 68003571, 90671428, 113339285, 118267080, 136007142, 181342856, 226678570, 272014284, 340017855, 453357140, 544028568, 680035710, 906714280, 1360071420, 2720142840]

約数ペア:

[(1, 2720142840), (2, 1360071420), (3, 906714280), (4, 680035710), (5, 544028568), (6, 453357140), (8, 340017855), (10, 272014284), (12, 226678570), (15, 181342856), (20, 136007142), (23, 118267080), (24, 113339285), (30, 90671428), (40, 68003571), (46, 59133540), (60, 45335714), (69, 39422360), (92, 29566770), (115, 23653416), (120, 22667857), (138, 19711180), (184, 14783385), (230, 11826708), (276, 9855590), (311, 8746440), (345, 7884472), (460, 5913354), (552, 4927795), (622, 4373220), (690, 3942236), (920, 2956677), (933, 2915480), (1244, 2186610), (1380, 1971118), (1555, 1749288), (1866, 1457740), (2488, 1093305), (2760, 985559), (3110, 874644), (3169, 858360), (3732, 728870), (4665, 583096), (6220, 437322), (6338, 429180), (7153, 380280), (7464, 364435), (9330, 291548), (9507, 286120), (12440, 218661), (12676, 214590), (14306, 190140), (15845, 171672), (18660, 145774), (19014, 143060), (21459, 126760), (25352, 107295), (28612, 95070), (31690, 85836), (35765, 76056), (37320, 72887), (38028, 71530), (42918, 63380), (47535, 57224)]