18847088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:310

約数の個数: 60

約数和(自身を含む): 41669208

約数和(自身を除く): 22822120

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 251, 304, 361, 494, 502, 722, 988, 1004, 1444, 1976, 2008, 2888, 3263, 3952, 4016, 4693, 4769, 5776, 6526, 9386, 9538, 13052, 18772, 19076, 26104, 37544, 38152, 52208, 61997, 75088, 76304, 90611, 123994, 181222, 247988, 362444, 495976, 724888, 991952, 1177943, 1449776, 2355886, 4711772, 9423544, 18847088]

約数ペア:

[(1, 18847088), (2, 9423544), (4, 4711772), (8, 2355886), (13, 1449776), (16, 1177943), (19, 991952), (26, 724888), (38, 495976), (52, 362444), (76, 247988), (104, 181222), (152, 123994), (208, 90611), (247, 76304), (251, 75088), (304, 61997), (361, 52208), (494, 38152), (502, 37544), (722, 26104), (988, 19076), (1004, 18772), (1444, 13052), (1976, 9538), (2008, 9386), (2888, 6526), (3263, 5776), (3952, 4769), (4016, 4693)]