20031472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:661

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 21215888

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 131, 152, 262, 304, 503, 524, 1006, 1048, 2012, 2096, 2489, 4024, 4978, 8048, 9557, 9956, 19114, 19912, 38228, 39824, 65893, 76456, 131786, 152912, 263572, 527144, 1054288, 1251967, 2503934, 5007868, 10015736, 20031472]

約数ペア:

[(1, 20031472), (2, 10015736), (4, 5007868), (8, 2503934), (16, 1251967), (19, 1054288), (38, 527144), (76, 263572), (131, 152912), (152, 131786), (262, 76456), (304, 65893), (503, 39824), (524, 38228), (1006, 19912), (1048, 19114), (2012, 9956), (2096, 9557), (2489, 8048), (4024, 4978)]