40729780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 112613760

約数和(自身を除く): 71883980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 49, 52, 65, 70, 91, 92, 98, 115, 130, 139, 140, 161, 182, 196, 230, 245, 260, 278, 299, 322, 364, 455, 460, 490, 556, 598, 637, 644, 695, 805, 910, 973, 980, 1127, 1196, 1274, 1390, 1495, 1610, 1807, 1820, 1946, 2093, 2254, 2548, 2780, 2990, 3185, 3197, 3220, 3614, 3892, 4186, 4508, 4865, 5635, 5980, 6370, 6394, 6811, 7228, 8372, 9035, 9730, 10465, 11270, 12649, 12740, 12788, 13622, 14651, 15985, 18070, 19460, 20930, 22379, 22540, 25298, 27244, 29302, 31970, 34055, 36140, 41561, 41860, 44758, 50596, 58604, 63245, 63940, 68110, 73255, 83122, 88543, 89516, 111895, 126490, 136220, 146510, 156653, 166244, 177086, 207805, 223790, 252980, 290927, 293020, 313306, 354172, 415610, 442715, 447580, 581854, 626612, 783265, 831220, 885430, 1163708, 1454635, 1566530, 1770860, 2036489, 2909270, 3133060, 4072978, 5818540, 8145956, 10182445, 20364890, 40729780]

約数ペア:

[(1, 40729780), (2, 20364890), (4, 10182445), (5, 8145956), (7, 5818540), (10, 4072978), (13, 3133060), (14, 2909270), (20, 2036489), (23, 1770860), (26, 1566530), (28, 1454635), (35, 1163708), (46, 885430), (49, 831220), (52, 783265), (65, 626612), (70, 581854), (91, 447580), (92, 442715), (98, 415610), (115, 354172), (130, 313306), (139, 293020), (140, 290927), (161, 252980), (182, 223790), (196, 207805), (230, 177086), (245, 166244), (260, 156653), (278, 146510), (299, 136220), (322, 126490), (364, 111895), (455, 89516), (460, 88543), (490, 83122), (556, 73255), (598, 68110), (637, 63940), (644, 63245), (695, 58604), (805, 50596), (910, 44758), (973, 41860), (980, 41561), (1127, 36140), (1196, 34055), (1274, 31970), (1390, 29302), (1495, 27244), (1610, 25298), (1807, 22540), (1820, 22379), (1946, 20930), (2093, 19460), (2254, 18070), (2548, 15985), (2780, 14651), (2990, 13622), (3185, 12788), (3197, 12740), (3220, 12649), (3614, 11270), (3892, 10465), (4186, 9730), (4508, 9035), (4865, 8372), (5635, 7228), (5980, 6811), (6370, 6394)]