20148786025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2\times {\mathrm{547}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 27606179520

約数和(自身を除く): 7457393495

約数列:

[1, 5, 23, 25, 29, 47, 115, 145, 235, 547, 575, 667, 725, 1081, 1175, 1363, 2209, 2735, 3335, 5405, 6815, 11045, 12581, 13675, 15863, 16675, 25709, 27025, 31349, 34075, 50807, 55225, 62905, 64061, 79315, 128545, 156745, 254035, 314525, 320305, 364849, 396575, 591307, 642725, 745561, 783725, 1208323, 1270175, 1473403, 1601525, 1824245, 2956535, 3727805, 6041615, 7367015, 9121225, 14782675, 17147903, 18639025, 27791429, 30208075, 35041367, 36835075, 85739515, 138957145, 175206835, 428697575, 694785725, 805951441, 876034175, 4029757205, 20148786025]

約数ペア:

[(1, 20148786025), (5, 4029757205), (23, 876034175), (25, 805951441), (29, 694785725), (47, 428697575), (115, 175206835), (145, 138957145), (235, 85739515), (547, 36835075), (575, 35041367), (667, 30208075), (725, 27791429), (1081, 18639025), (1175, 17147903), (1363, 14782675), (2209, 9121225), (2735, 7367015), (3335, 6041615), (5405, 3727805), (6815, 2956535), (11045, 1824245), (12581, 1601525), (13675, 1473403), (15863, 1270175), (16675, 1208323), (25709, 783725), (27025, 745561), (31349, 642725), (34075, 591307), (50807, 396575), (55225, 364849), (62905, 320305), (64061, 314525), (79315, 254035), (128545, 156745)]