20346364880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{56131}}^1$

素因数の和:56364

約数の個数: 80

約数和(自身を含む): 49613503104

約数和(自身を除く): 29267138224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 197, 230, 368, 394, 460, 788, 920, 985, 1576, 1840, 1970, 3152, 3940, 4531, 7880, 9062, 15760, 18124, 22655, 36248, 45310, 56131, 72496, 90620, 112262, 181240, 224524, 280655, 362480, 449048, 561310, 898096, 1122620, 1291013, 2245240, 2582026, 4490480, 5164052, 6455065, 10328104, 11057807, 12910130, 20656208, 22115614, 25820260, 44231228, 51640520, 55289035, 88462456, 103281040, 110578070, 176924912, 221156140, 254329561, 442312280, 508659122, 884624560, 1017318244, 1271647805, 2034636488, 2543295610, 4069272976, 5086591220, 10173182440, 20346364880]

約数ペア:

[(1, 20346364880), (2, 10173182440), (4, 5086591220), (5, 4069272976), (8, 2543295610), (10, 2034636488), (16, 1271647805), (20, 1017318244), (23, 884624560), (40, 508659122), (46, 442312280), (80, 254329561), (92, 221156140), (115, 176924912), (184, 110578070), (197, 103281040), (230, 88462456), (368, 55289035), (394, 51640520), (460, 44231228), (788, 25820260), (920, 22115614), (985, 20656208), (1576, 12910130), (1840, 11057807), (1970, 10328104), (3152, 6455065), (3940, 5164052), (4531, 4490480), (7880, 2582026), (9062, 2245240), (15760, 1291013), (18124, 1122620), (22655, 898096), (36248, 561310), (45310, 449048), (56131, 362480), (72496, 280655), (90620, 224524), (112262, 181240)]