40771640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:541

約数の個数: 128

約数和(自身を含む): 118056960

約数和(自身を除く): 77285320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 91, 92, 104, 115, 130, 140, 161, 182, 184, 230, 260, 280, 299, 322, 364, 455, 460, 487, 520, 598, 644, 728, 805, 910, 920, 974, 1196, 1288, 1495, 1610, 1820, 1948, 2093, 2392, 2435, 2990, 3220, 3409, 3640, 3896, 4186, 4870, 5980, 6331, 6440, 6818, 8372, 9740, 10465, 11201, 11960, 12662, 13636, 16744, 17045, 19480, 20930, 22402, 25324, 27272, 31655, 34090, 41860, 44317, 44804, 50648, 56005, 63310, 68180, 78407, 83720, 88634, 89608, 112010, 126620, 136360, 145613, 156814, 177268, 221585, 224020, 253240, 291226, 313628, 354536, 392035, 443170, 448040, 582452, 627256, 728065, 784070, 886340, 1019291, 1164904, 1456130, 1568140, 1772680, 2038582, 2912260, 3136280, 4077164, 5096455, 5824520, 8154328, 10192910, 20385820, 40771640]

約数ペア:

[(1, 40771640), (2, 20385820), (4, 10192910), (5, 8154328), (7, 5824520), (8, 5096455), (10, 4077164), (13, 3136280), (14, 2912260), (20, 2038582), (23, 1772680), (26, 1568140), (28, 1456130), (35, 1164904), (40, 1019291), (46, 886340), (52, 784070), (56, 728065), (65, 627256), (70, 582452), (91, 448040), (92, 443170), (104, 392035), (115, 354536), (130, 313628), (140, 291226), (161, 253240), (182, 224020), (184, 221585), (230, 177268), (260, 156814), (280, 145613), (299, 136360), (322, 126620), (364, 112010), (455, 89608), (460, 88634), (487, 83720), (520, 78407), (598, 68180), (644, 63310), (728, 56005), (805, 50648), (910, 44804), (920, 44317), (974, 41860), (1196, 34090), (1288, 31655), (1495, 27272), (1610, 25324), (1820, 22402), (1948, 20930), (2093, 19480), (2392, 17045), (2435, 16744), (2990, 13636), (3220, 12662), (3409, 11960), (3640, 11201), (3896, 10465), (4186, 9740), (4870, 8372), (5980, 6818), (6331, 6440)]