68785640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1023

約数の個数: 128

約数和(自身を含む): 201553920

約数和(自身を除く): 132768280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 280, 308, 322, 385, 440, 460, 506, 616, 644, 770, 805, 920, 971, 1012, 1265, 1288, 1540, 1610, 1771, 1942, 2024, 2530, 3080, 3220, 3542, 3884, 4855, 5060, 6440, 6797, 7084, 7768, 8855, 9710, 10120, 10681, 13594, 14168, 17710, 19420, 21362, 22333, 27188, 33985, 35420, 38840, 42724, 44666, 53405, 54376, 67970, 70840, 74767, 85448, 89332, 106810, 111665, 135940, 149534, 156331, 178664, 213620, 223330, 245663, 271880, 299068, 312662, 373835, 427240, 446660, 491326, 598136, 625324, 747670, 781655, 893320, 982652, 1228315, 1250648, 1495340, 1563310, 1719641, 1965304, 2456630, 2990680, 3126620, 3439282, 4913260, 6253240, 6878564, 8598205, 9826520, 13757128, 17196410, 34392820, 68785640]

約数ペア:

[(1, 68785640), (2, 34392820), (4, 17196410), (5, 13757128), (7, 9826520), (8, 8598205), (10, 6878564), (11, 6253240), (14, 4913260), (20, 3439282), (22, 3126620), (23, 2990680), (28, 2456630), (35, 1965304), (40, 1719641), (44, 1563310), (46, 1495340), (55, 1250648), (56, 1228315), (70, 982652), (77, 893320), (88, 781655), (92, 747670), (110, 625324), (115, 598136), (140, 491326), (154, 446660), (161, 427240), (184, 373835), (220, 312662), (230, 299068), (253, 271880), (280, 245663), (308, 223330), (322, 213620), (385, 178664), (440, 156331), (460, 149534), (506, 135940), (616, 111665), (644, 106810), (770, 89332), (805, 85448), (920, 74767), (971, 70840), (1012, 67970), (1265, 54376), (1288, 53405), (1540, 44666), (1610, 42724), (1771, 38840), (1942, 35420), (2024, 33985), (2530, 27188), (3080, 22333), (3220, 21362), (3542, 19420), (3884, 17710), (4855, 14168), (5060, 13594), (6440, 10681), (6797, 10120), (7084, 9710), (7768, 8855)]