20078855000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{461}}^1$

素因数の和:799

約数の個数: 160

約数和(自身を含む): 48840865920

約数和(自身を除く): 28762010920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 281, 310, 461, 500, 562, 620, 625, 775, 922, 1000, 1124, 1240, 1250, 1405, 1550, 1844, 2248, 2305, 2500, 2810, 3100, 3688, 3875, 4610, 5000, 5620, 6200, 7025, 7750, 8711, 9220, 11240, 11525, 14050, 14291, 15500, 17422, 18440, 19375, 23050, 28100, 28582, 31000, 34844, 35125, 38750, 43555, 46100, 56200, 57164, 57625, 69688, 70250, 71455, 77500, 87110, 92200, 114328, 115250, 129541, 140500, 142910, 155000, 174220, 175625, 217775, 230500, 259082, 281000, 285820, 288125, 348440, 351250, 357275, 435550, 461000, 518164, 571640, 576250, 647705, 702500, 714550, 871100, 1036328, 1088875, 1152500, 1295410, 1405000, 1429100, 1742200, 1786375, 2177750, 2305000, 2590820, 2858200, 3238525, 3572750, 4015771, 4355500, 5181640, 5444375, 6477050, 7145500, 8031542, 8711000, 8931875, 10888750, 12954100, 14291000, 16063084, 16192625, 17863750, 20078855, 21777500, 25908200, 32126168, 32385250, 35727500, 40157710, 43555000, 64770500, 71455000, 80315420, 80963125, 100394275, 129541000, 160630840, 161926250, 200788550, 323852500, 401577100, 501971375, 647705000, 803154200, 1003942750, 2007885500, 2509856875, 4015771000, 5019713750, 10039427500, 20078855000]

約数ペア:

[(1, 20078855000), (2, 10039427500), (4, 5019713750), (5, 4015771000), (8, 2509856875), (10, 2007885500), (20, 1003942750), (25, 803154200), (31, 647705000), (40, 501971375), (50, 401577100), (62, 323852500), (100, 200788550), (124, 161926250), (125, 160630840), (155, 129541000), (200, 100394275), (248, 80963125), (250, 80315420), (281, 71455000), (310, 64770500), (461, 43555000), (500, 40157710), (562, 35727500), (620, 32385250), (625, 32126168), (775, 25908200), (922, 21777500), (1000, 20078855), (1124, 17863750), (1240, 16192625), (1250, 16063084), (1405, 14291000), (1550, 12954100), (1844, 10888750), (2248, 8931875), (2305, 8711000), (2500, 8031542), (2810, 7145500), (3100, 6477050), (3688, 5444375), (3875, 5181640), (4610, 4355500), (5000, 4015771), (5620, 3572750), (6200, 3238525), (7025, 2858200), (7750, 2590820), (8711, 2305000), (9220, 2177750), (11240, 1786375), (11525, 1742200), (14050, 1429100), (14291, 1405000), (15500, 1295410), (17422, 1152500), (18440, 1088875), (19375, 1036328), (23050, 871100), (28100, 714550), (28582, 702500), (31000, 647705), (34844, 576250), (35125, 571640), (38750, 518164), (43555, 461000), (46100, 435550), (56200, 357275), (57164, 351250), (57625, 348440), (69688, 288125), (70250, 285820), (71455, 281000), (77500, 259082), (87110, 230500), (92200, 217775), (114328, 175625), (115250, 174220), (129541, 155000), (140500, 142910)]