81706768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 120

約数和(自身を含む): 194425056

約数和(自身を除く): 112718288

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 41, 44, 52, 67, 82, 88, 104, 134, 143, 164, 169, 176, 208, 268, 286, 328, 338, 451, 533, 536, 572, 656, 676, 737, 871, 902, 1066, 1072, 1144, 1352, 1474, 1742, 1804, 1859, 2132, 2288, 2704, 2747, 2948, 3484, 3608, 3718, 4264, 5494, 5863, 5896, 6929, 6968, 7216, 7436, 8528, 9581, 10988, 11323, 11726, 11792, 13858, 13936, 14872, 19162, 21976, 22646, 23452, 27716, 29744, 30217, 35711, 38324, 43952, 45292, 46904, 55432, 60434, 71422, 76219, 76648, 90584, 93808, 110864, 120868, 124553, 142844, 152438, 153296, 181168, 241736, 249106, 285688, 304876, 392821, 464243, 483472, 498212, 571376, 609752, 785642, 928486, 996424, 1219504, 1571284, 1856972, 1992848, 3142568, 3713944, 5106673, 6285136, 7427888, 10213346, 20426692, 40853384, 81706768]

約数ペア:

[(1, 81706768), (2, 40853384), (4, 20426692), (8, 10213346), (11, 7427888), (13, 6285136), (16, 5106673), (22, 3713944), (26, 3142568), (41, 1992848), (44, 1856972), (52, 1571284), (67, 1219504), (82, 996424), (88, 928486), (104, 785642), (134, 609752), (143, 571376), (164, 498212), (169, 483472), (176, 464243), (208, 392821), (268, 304876), (286, 285688), (328, 249106), (338, 241736), (451, 181168), (533, 153296), (536, 152438), (572, 142844), (656, 124553), (676, 120868), (737, 110864), (871, 93808), (902, 90584), (1066, 76648), (1072, 76219), (1144, 71422), (1352, 60434), (1474, 55432), (1742, 46904), (1804, 45292), (1859, 43952), (2132, 38324), (2288, 35711), (2704, 30217), (2747, 29744), (2948, 27716), (3484, 23452), (3608, 22646), (3718, 21976), (4264, 19162), (5494, 14872), (5863, 13936), (5896, 13858), (6929, 11792), (6968, 11726), (7216, 11323), (7436, 10988), (8528, 9581)]