20290556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1914

約数の個数: 48

約数和(自身を含む): 43935360

約数和(自身を除く): 23644804

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 418, 494, 572, 836, 988, 1867, 2717, 3734, 5434, 7468, 10868, 20537, 24271, 35473, 41074, 48542, 70946, 82148, 97084, 141892, 266981, 390203, 461149, 533962, 780406, 922298, 1067924, 1560812, 1844596, 5072639, 10145278, 20290556]

約数ペア:

[(1, 20290556), (2, 10145278), (4, 5072639), (11, 1844596), (13, 1560812), (19, 1067924), (22, 922298), (26, 780406), (38, 533962), (44, 461149), (52, 390203), (76, 266981), (143, 141892), (209, 97084), (247, 82148), (286, 70946), (418, 48542), (494, 41074), (572, 35473), (836, 24271), (988, 20537), (1867, 10868), (2717, 7468), (3734, 5434)]