20637959984

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{244897}}^1$

素因数の和:245157

約数の個数: 40

約数和(自身を含む): 41906945760

約数和(自身を除く): 21268985776

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 229, 368, 458, 916, 1832, 3664, 5267, 10534, 21068, 42136, 84272, 244897, 489794, 979588, 1959176, 3918352, 5632631, 11265262, 22530524, 45061048, 56081413, 90122096, 112162826, 224325652, 448651304, 897302608, 1289872499, 2579744998, 5159489996, 10318979992, 20637959984]

約数ペア:

[(1, 20637959984), (2, 10318979992), (4, 5159489996), (8, 2579744998), (16, 1289872499), (23, 897302608), (46, 448651304), (92, 224325652), (184, 112162826), (229, 90122096), (368, 56081413), (458, 45061048), (916, 22530524), (1832, 11265262), (3664, 5632631), (5267, 3918352), (10534, 1959176), (21068, 979588), (42136, 489794), (84272, 244897)]