40788160

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:294

約数の個数: 112

約数和(自身を含む): 112654080

約数和(自身を除く): 71865920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 131, 139, 140, 160, 224, 262, 278, 280, 320, 448, 524, 556, 560, 655, 695, 917, 973, 1048, 1112, 1120, 1310, 1390, 1834, 1946, 2096, 2224, 2240, 2620, 2780, 3668, 3892, 4192, 4448, 4585, 4865, 5240, 5560, 7336, 7784, 8384, 8896, 9170, 9730, 10480, 11120, 14672, 15568, 18209, 18340, 19460, 20960, 22240, 29344, 31136, 36418, 36680, 38920, 41920, 44480, 58688, 62272, 72836, 73360, 77840, 91045, 127463, 145672, 146720, 155680, 182090, 254926, 291344, 293440, 311360, 364180, 509852, 582688, 637315, 728360, 1019704, 1165376, 1274630, 1456720, 2039408, 2549260, 2913440, 4078816, 5098520, 5826880, 8157632, 10197040, 20394080, 40788160]

約数ペア:

[(1, 40788160), (2, 20394080), (4, 10197040), (5, 8157632), (7, 5826880), (8, 5098520), (10, 4078816), (14, 2913440), (16, 2549260), (20, 2039408), (28, 1456720), (32, 1274630), (35, 1165376), (40, 1019704), (56, 728360), (64, 637315), (70, 582688), (80, 509852), (112, 364180), (131, 311360), (139, 293440), (140, 291344), (160, 254926), (224, 182090), (262, 155680), (278, 146720), (280, 145672), (320, 127463), (448, 91045), (524, 77840), (556, 73360), (560, 72836), (655, 62272), (695, 58688), (917, 44480), (973, 41920), (1048, 38920), (1112, 36680), (1120, 36418), (1310, 31136), (1390, 29344), (1834, 22240), (1946, 20960), (2096, 19460), (2224, 18340), (2240, 18209), (2620, 15568), (2780, 14672), (3668, 11120), (3892, 10480), (4192, 9730), (4448, 9170), (4585, 8896), (4865, 8384), (5240, 7784), (5560, 7336)]