20321000308

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{69073}}^1$

素因数の和:69189

約数の個数: 72

約数和(自身を含む): 44096841600

約数和(自身を除く): 23775841292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 79, 98, 133, 158, 196, 266, 316, 532, 553, 931, 1106, 1501, 1862, 2212, 3002, 3724, 3871, 6004, 7742, 10507, 15484, 21014, 42028, 69073, 73549, 138146, 147098, 276292, 294196, 483511, 967022, 1312387, 1934044, 2624774, 3384577, 5249548, 5456767, 6769154, 9186709, 10913534, 13538308, 18373418, 21827068, 36746836, 38197369, 64306963, 76394738, 103678573, 128613926, 152789476, 207357146, 257227852, 267381583, 414714292, 534763166, 725750011, 1069526332, 1451500022, 2903000044, 5080250077, 10160500154, 20321000308]

約数ペア:

[(1, 20321000308), (2, 10160500154), (4, 5080250077), (7, 2903000044), (14, 1451500022), (19, 1069526332), (28, 725750011), (38, 534763166), (49, 414714292), (76, 267381583), (79, 257227852), (98, 207357146), (133, 152789476), (158, 128613926), (196, 103678573), (266, 76394738), (316, 64306963), (532, 38197369), (553, 36746836), (931, 21827068), (1106, 18373418), (1501, 13538308), (1862, 10913534), (2212, 9186709), (3002, 6769154), (3724, 5456767), (3871, 5249548), (6004, 3384577), (7742, 2624774), (10507, 1934044), (15484, 1312387), (21014, 967022), (42028, 483511), (69073, 294196), (73549, 276292), (138146, 147098)]