678619480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2789}}^1$

素因数の和:2897

約数の個数: 128

約数和(自身を含む): 1928448000

約数和(自身を除く): 1249828520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 79, 88, 110, 140, 154, 158, 220, 280, 308, 316, 385, 395, 440, 553, 616, 632, 770, 790, 869, 1106, 1540, 1580, 1738, 2212, 2765, 2789, 3080, 3160, 3476, 4345, 4424, 5530, 5578, 6083, 6952, 8690, 11060, 11156, 12166, 13945, 17380, 19523, 22120, 22312, 24332, 27890, 30415, 30679, 34760, 39046, 48664, 55780, 60830, 61358, 78092, 97615, 111560, 121660, 122716, 153395, 156184, 195230, 214753, 220331, 243320, 245432, 306790, 390460, 429506, 440662, 613580, 780920, 859012, 881324, 1073765, 1101655, 1227160, 1542317, 1718024, 1762648, 2147530, 2203310, 2423641, 3084634, 4295060, 4406620, 4847282, 6169268, 7711585, 8590120, 8813240, 9694564, 12118205, 12338536, 15423170, 16965487, 19389128, 24236410, 30846340, 33930974, 48472820, 61692680, 67861948, 84827435, 96945640, 135723896, 169654870, 339309740, 678619480]

約数ペア:

[(1, 678619480), (2, 339309740), (4, 169654870), (5, 135723896), (7, 96945640), (8, 84827435), (10, 67861948), (11, 61692680), (14, 48472820), (20, 33930974), (22, 30846340), (28, 24236410), (35, 19389128), (40, 16965487), (44, 15423170), (55, 12338536), (56, 12118205), (70, 9694564), (77, 8813240), (79, 8590120), (88, 7711585), (110, 6169268), (140, 4847282), (154, 4406620), (158, 4295060), (220, 3084634), (280, 2423641), (308, 2203310), (316, 2147530), (385, 1762648), (395, 1718024), (440, 1542317), (553, 1227160), (616, 1101655), (632, 1073765), (770, 881324), (790, 859012), (869, 780920), (1106, 613580), (1540, 440662), (1580, 429506), (1738, 390460), (2212, 306790), (2765, 245432), (2789, 243320), (3080, 220331), (3160, 214753), (3476, 195230), (4345, 156184), (4424, 153395), (5530, 122716), (5578, 121660), (6083, 111560), (6952, 97615), (8690, 78092), (11060, 61358), (11156, 60830), (12166, 55780), (13945, 48664), (17380, 39046), (19523, 34760), (22120, 30679), (22312, 30415), (24332, 27890)]