20754688

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 46357920

約数和(自身を除く): 25603232

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 251, 256, 272, 304, 323, 502, 544, 608, 646, 1004, 1088, 1216, 1292, 2008, 2176, 2432, 2584, 4016, 4267, 4352, 4769, 4864, 5168, 8032, 8534, 9538, 10336, 16064, 17068, 19076, 20672, 32128, 34136, 38152, 41344, 64256, 68272, 76304, 81073, 82688, 136544, 152608, 162146, 273088, 305216, 324292, 546176, 610432, 648584, 1092352, 1220864, 1297168, 2594336, 5188672, 10377344, 20754688]

約数ペア:

[(1, 20754688), (2, 10377344), (4, 5188672), (8, 2594336), (16, 1297168), (17, 1220864), (19, 1092352), (32, 648584), (34, 610432), (38, 546176), (64, 324292), (68, 305216), (76, 273088), (128, 162146), (136, 152608), (152, 136544), (251, 82688), (256, 81073), (272, 76304), (304, 68272), (323, 64256), (502, 41344), (544, 38152), (608, 34136), (646, 32128), (1004, 20672), (1088, 19076), (1216, 17068), (1292, 16064), (2008, 10336), (2176, 9538), (2432, 8534), (2584, 8032), (4016, 5168), (4267, 4864), (4352, 4769)]