20155853744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 120

約数和(自身を含む): 43670746560

約数和(自身を除く): 23514892816

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 71, 94, 104, 142, 188, 208, 284, 376, 409, 568, 611, 752, 818, 923, 1136, 1222, 1636, 1846, 2444, 3272, 3337, 3692, 4888, 5041, 5317, 6544, 6674, 7384, 9776, 10082, 10634, 13348, 14768, 19223, 20164, 21268, 26696, 29039, 38446, 40328, 42536, 43381, 53392, 58078, 65533, 76892, 80656, 85072, 86762, 116156, 131066, 153784, 173524, 232312, 236927, 249899, 262132, 307568, 347048, 377507, 464624, 473854, 499798, 524264, 694096, 755014, 947708, 999596, 1048528, 1364833, 1510028, 1895416, 1999192, 2061769, 2729666, 3020056, 3080051, 3790832, 3998384, 4123538, 5459332, 6040112, 6160102, 8247076, 10918664, 12320204, 16494152, 17742829, 21837328, 24640408, 26802997, 32988304, 35485658, 49280816, 53605994, 70971316, 96903143, 107211988, 141942632, 193806286, 214423976, 283885264, 387612572, 428847952, 775225144, 1259740859, 1550450288, 2519481718, 5038963436, 10077926872, 20155853744]

約数ペア:

[(1, 20155853744), (2, 10077926872), (4, 5038963436), (8, 2519481718), (13, 1550450288), (16, 1259740859), (26, 775225144), (47, 428847952), (52, 387612572), (71, 283885264), (94, 214423976), (104, 193806286), (142, 141942632), (188, 107211988), (208, 96903143), (284, 70971316), (376, 53605994), (409, 49280816), (568, 35485658), (611, 32988304), (752, 26802997), (818, 24640408), (923, 21837328), (1136, 17742829), (1222, 16494152), (1636, 12320204), (1846, 10918664), (2444, 8247076), (3272, 6160102), (3337, 6040112), (3692, 5459332), (4888, 4123538), (5041, 3998384), (5317, 3790832), (6544, 3080051), (6674, 3020056), (7384, 2729666), (9776, 2061769), (10082, 1999192), (10634, 1895416), (13348, 1510028), (14768, 1364833), (19223, 1048528), (20164, 999596), (21268, 947708), (26696, 755014), (29039, 694096), (38446, 524264), (40328, 499798), (42536, 473854), (43381, 464624), (53392, 377507), (58078, 347048), (65533, 307568), (76892, 262132), (80656, 249899), (85072, 236927), (86762, 232312), (116156, 173524), (131066, 153784)]