19771840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 112

約数和(自身を含む): 52998624

約数和(自身を除く): 33226784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 137, 160, 164, 176, 205, 220, 274, 320, 328, 352, 410, 440, 451, 548, 656, 685, 704, 820, 880, 902, 1096, 1312, 1370, 1507, 1640, 1760, 1804, 2192, 2255, 2624, 2740, 3014, 3280, 3520, 3608, 4384, 4510, 5480, 5617, 6028, 6560, 7216, 7535, 8768, 9020, 10960, 11234, 12056, 13120, 14432, 15070, 18040, 21920, 22468, 24112, 28085, 28864, 30140, 36080, 43840, 44936, 48224, 56170, 60280, 61787, 72160, 89872, 96448, 112340, 120560, 123574, 144320, 179744, 224680, 241120, 247148, 308935, 359488, 449360, 482240, 494296, 617870, 898720, 988592, 1235740, 1797440, 1977184, 2471480, 3954368, 4942960, 9885920, 19771840]

約数ペア:

[(1, 19771840), (2, 9885920), (4, 4942960), (5, 3954368), (8, 2471480), (10, 1977184), (11, 1797440), (16, 1235740), (20, 988592), (22, 898720), (32, 617870), (40, 494296), (41, 482240), (44, 449360), (55, 359488), (64, 308935), (80, 247148), (82, 241120), (88, 224680), (110, 179744), (137, 144320), (160, 123574), (164, 120560), (176, 112340), (205, 96448), (220, 89872), (274, 72160), (320, 61787), (328, 60280), (352, 56170), (410, 48224), (440, 44936), (451, 43840), (548, 36080), (656, 30140), (685, 28864), (704, 28085), (820, 24112), (880, 22468), (902, 21920), (1096, 18040), (1312, 15070), (1370, 14432), (1507, 13120), (1640, 12056), (1760, 11234), (1804, 10960), (2192, 9020), (2255, 8768), (2624, 7535), (2740, 7216), (3014, 6560), (3280, 6028), (3520, 5617), (3608, 5480), (4384, 4510)]