81576091792

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{31393}}^1$

素因数の和:31489

約数の個数: 90

約数和(自身を含む): 176851474866

約数和(自身を除く): 95275383074

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 248, 338, 403, 496, 676, 806, 961, 1352, 1612, 1922, 2704, 3224, 3844, 5239, 6448, 7688, 10478, 12493, 15376, 20956, 24986, 31393, 41912, 49972, 62786, 83824, 99944, 125572, 162409, 199888, 251144, 324818, 408109, 502288, 649636, 816218, 973183, 1299272, 1632436, 1946366, 2598544, 3264872, 3892732, 5305417, 6529744, 7785464, 10610834, 12651379, 15570928, 21221668, 25302758, 30168673, 42443336, 50605516, 60337346, 84886672, 101211032, 120674692, 164467927, 202422064, 241349384, 328935854, 392192749, 482698768, 657871708, 784385498, 1315743416, 1568770996, 2631486832, 3137541992, 5098505737, 6275083984, 10197011474, 20394022948, 40788045896, 81576091792]

約数ペア:

[(1, 81576091792), (2, 40788045896), (4, 20394022948), (8, 10197011474), (13, 6275083984), (16, 5098505737), (26, 3137541992), (31, 2631486832), (52, 1568770996), (62, 1315743416), (104, 784385498), (124, 657871708), (169, 482698768), (208, 392192749), (248, 328935854), (338, 241349384), (403, 202422064), (496, 164467927), (676, 120674692), (806, 101211032), (961, 84886672), (1352, 60337346), (1612, 50605516), (1922, 42443336), (2704, 30168673), (3224, 25302758), (3844, 21221668), (5239, 15570928), (6448, 12651379), (7688, 10610834), (10478, 7785464), (12493, 6529744), (15376, 5305417), (20956, 3892732), (24986, 3264872), (31393, 2598544), (41912, 1946366), (49972, 1632436), (62786, 1299272), (83824, 973183), (99944, 816218), (125572, 649636), (162409, 502288), (199888, 408109), (251144, 324818)]