20512305760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{85411}}^1$

素因数の和:85524

約数の個数: 96

約数和(自身を含む): 51657177600

約数和(自身を除く): 31144871840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 79, 80, 95, 152, 158, 160, 190, 304, 316, 380, 395, 608, 632, 760, 790, 1264, 1501, 1520, 1580, 2528, 3002, 3040, 3160, 6004, 6320, 7505, 12008, 12640, 15010, 24016, 30020, 48032, 60040, 85411, 120080, 170822, 240160, 341644, 427055, 683288, 854110, 1366576, 1622809, 1708220, 2733152, 3245618, 3416440, 6491236, 6747469, 6832880, 8114045, 12982472, 13494938, 13665760, 16228090, 25964944, 26989876, 32456180, 33737345, 51929888, 53979752, 64912360, 67474690, 107959504, 128201911, 129824720, 134949380, 215919008, 256403822, 259649440, 269898760, 512807644, 539797520, 641009555, 1025615288, 1079595040, 1282019110, 2051230576, 2564038220, 4102461152, 5128076440, 10256152880, 20512305760]

約数ペア:

[(1, 20512305760), (2, 10256152880), (4, 5128076440), (5, 4102461152), (8, 2564038220), (10, 2051230576), (16, 1282019110), (19, 1079595040), (20, 1025615288), (32, 641009555), (38, 539797520), (40, 512807644), (76, 269898760), (79, 259649440), (80, 256403822), (95, 215919008), (152, 134949380), (158, 129824720), (160, 128201911), (190, 107959504), (304, 67474690), (316, 64912360), (380, 53979752), (395, 51929888), (608, 33737345), (632, 32456180), (760, 26989876), (790, 25964944), (1264, 16228090), (1501, 13665760), (1520, 13494938), (1580, 12982472), (2528, 8114045), (3002, 6832880), (3040, 6747469), (3160, 6491236), (6004, 3416440), (6320, 3245618), (7505, 2733152), (12008, 1708220), (12640, 1622809), (15010, 1366576), (24016, 854110), (30020, 683288), (48032, 427055), (60040, 341644), (85411, 240160), (120080, 170822)]