21756558475

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{373}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 29896381152

約数和(自身を除く): 8139822677

約数列:

[1, 5, 19, 23, 25, 95, 115, 281, 361, 373, 437, 475, 575, 1405, 1805, 1865, 2185, 5339, 6463, 7025, 7087, 8303, 8579, 9025, 9325, 10925, 26695, 32315, 35435, 41515, 42895, 101441, 104813, 122797, 133475, 134653, 161575, 163001, 177175, 207575, 214475, 507205, 524065, 613985, 673265, 815005, 1991447, 2333143, 2410699, 2536025, 2620325, 3069925, 3097019, 3366325, 4075025, 9957235, 11665715, 12053495, 15485095, 37837493, 45803281, 49786175, 58328575, 60267475, 77425475, 189187465, 229016405, 870262339, 945937325, 1145082025, 4351311695, 21756558475]

約数ペア:

[(1, 21756558475), (5, 4351311695), (19, 1145082025), (23, 945937325), (25, 870262339), (95, 229016405), (115, 189187465), (281, 77425475), (361, 60267475), (373, 58328575), (437, 49786175), (475, 45803281), (575, 37837493), (1405, 15485095), (1805, 12053495), (1865, 11665715), (2185, 9957235), (5339, 4075025), (6463, 3366325), (7025, 3097019), (7087, 3069925), (8303, 2620325), (8579, 2536025), (9025, 2410699), (9325, 2333143), (10925, 1991447), (26695, 815005), (32315, 673265), (35435, 613985), (41515, 524065), (42895, 507205), (101441, 214475), (104813, 207575), (122797, 177175), (133475, 163001), (134653, 161575)]