40804720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 104859360

約数和(自身を除く): 64054640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 521, 712, 880, 890, 979, 1042, 1424, 1780, 1958, 2084, 2605, 3560, 3916, 4168, 4895, 5210, 5731, 7120, 7832, 8336, 9790, 10420, 11462, 15664, 19580, 20840, 22924, 28655, 39160, 41680, 45848, 46369, 57310, 78320, 91696, 92738, 114620, 185476, 229240, 231845, 370952, 458480, 463690, 510059, 741904, 927380, 1020118, 1854760, 2040236, 2550295, 3709520, 4080472, 5100590, 8160944, 10201180, 20402360, 40804720]

約数ペア:

[(1, 40804720), (2, 20402360), (4, 10201180), (5, 8160944), (8, 5100590), (10, 4080472), (11, 3709520), (16, 2550295), (20, 2040236), (22, 1854760), (40, 1020118), (44, 927380), (55, 741904), (80, 510059), (88, 463690), (89, 458480), (110, 370952), (176, 231845), (178, 229240), (220, 185476), (356, 114620), (440, 92738), (445, 91696), (521, 78320), (712, 57310), (880, 46369), (890, 45848), (979, 41680), (1042, 39160), (1424, 28655), (1780, 22924), (1958, 20840), (2084, 19580), (2605, 15664), (3560, 11462), (3916, 10420), (4168, 9790), (4895, 8336), (5210, 7832), (5731, 7120)]