20424565575

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{593}}^1\times {\mathrm{3257}}^1$

素因数の和:3913

約数の個数: 72

約数和(自身を含む): 37435514688

約数和(自身を除く): 17010949113

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 593, 705, 1175, 1779, 2115, 2965, 3257, 3525, 5337, 8895, 9771, 10575, 14825, 16285, 26685, 27871, 29313, 44475, 48855, 81425, 83613, 133425, 139355, 146565, 153079, 244275, 250839, 418065, 459237, 696775, 732825, 765395, 1254195, 1377711, 1931401, 2090325, 2296185, 3826975, 5794203, 6270975, 6888555, 9657005, 11480925, 17382609, 28971015, 34442775, 48285025, 86913045, 90775847, 144855075, 272327541, 434565225, 453879235, 816982623, 1361637705, 2269396175, 4084913115, 6808188525, 20424565575]

約数ペア:

[(1, 20424565575), (3, 6808188525), (5, 4084913115), (9, 2269396175), (15, 1361637705), (25, 816982623), (45, 453879235), (47, 434565225), (75, 272327541), (141, 144855075), (225, 90775847), (235, 86913045), (423, 48285025), (593, 34442775), (705, 28971015), (1175, 17382609), (1779, 11480925), (2115, 9657005), (2965, 6888555), (3257, 6270975), (3525, 5794203), (5337, 3826975), (8895, 2296185), (9771, 2090325), (10575, 1931401), (14825, 1377711), (16285, 1254195), (26685, 765395), (27871, 732825), (29313, 696775), (44475, 459237), (48855, 418065), (81425, 250839), (83613, 244275), (133425, 153079), (139355, 146565)]