81804860500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{1291}}^1$

素因数の和:1643

約数の個数: 192

約数和(自身を含む): 200523278592

約数和(自身を除く): 118718418092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 125, 164, 205, 220, 250, 275, 281, 410, 451, 500, 550, 562, 820, 902, 1025, 1100, 1124, 1291, 1375, 1405, 1804, 2050, 2255, 2582, 2750, 2810, 3091, 4100, 4510, 5125, 5164, 5500, 5620, 6182, 6455, 7025, 9020, 10250, 11275, 11521, 12364, 12910, 14050, 14201, 15455, 20500, 22550, 23042, 25820, 28100, 28402, 30910, 32275, 35125, 45100, 46084, 52931, 56375, 56804, 57605, 61820, 64550, 70250, 71005, 77275, 105862, 112750, 115210, 126731, 129100, 140500, 142010, 154550, 161375, 211724, 225500, 230420, 253462, 264655, 284020, 288025, 309100, 322750, 355025, 362771, 386375, 506924, 529310, 576050, 582241, 633655, 645500, 710050, 725542, 772750, 1058620, 1152100, 1164482, 1267310, 1323275, 1420100, 1440125, 1451084, 1545500, 1775125, 1813855, 2328964, 2534620, 2646550, 2880250, 2911205, 3168275, 3550250, 3627710, 3990481, 5293100, 5760500, 5822410, 6336550, 6616375, 7100500, 7255420, 7980962, 9069275, 11644820, 12673100, 13232750, 14556025, 14873611, 15841375, 15961924, 18138550, 19952405, 26465500, 29112050, 29747222, 31682750, 36277100, 39904810, 45346375, 58224100, 59494444, 63365500, 72780125, 74368055, 79809620, 90692750, 99762025, 145560250, 148736110, 163609721, 181385500, 199524050, 291120500, 297472220, 327219442, 371840275, 399048100, 498810125, 654438884, 743680550, 818048605, 997620250, 1487361100, 1636097210, 1859201375, 1995240500, 3272194420, 3718402750, 4090243025, 7436805500, 8180486050, 16360972100, 20451215125, 40902430250, 81804860500]

約数ペア:

[(1, 81804860500), (2, 40902430250), (4, 20451215125), (5, 16360972100), (10, 8180486050), (11, 7436805500), (20, 4090243025), (22, 3718402750), (25, 3272194420), (41, 1995240500), (44, 1859201375), (50, 1636097210), (55, 1487361100), (82, 997620250), (100, 818048605), (110, 743680550), (125, 654438884), (164, 498810125), (205, 399048100), (220, 371840275), (250, 327219442), (275, 297472220), (281, 291120500), (410, 199524050), (451, 181385500), (500, 163609721), (550, 148736110), (562, 145560250), (820, 99762025), (902, 90692750), (1025, 79809620), (1100, 74368055), (1124, 72780125), (1291, 63365500), (1375, 59494444), (1405, 58224100), (1804, 45346375), (2050, 39904810), (2255, 36277100), (2582, 31682750), (2750, 29747222), (2810, 29112050), (3091, 26465500), (4100, 19952405), (4510, 18138550), (5125, 15961924), (5164, 15841375), (5500, 14873611), (5620, 14556025), (6182, 13232750), (6455, 12673100), (7025, 11644820), (9020, 9069275), (10250, 7980962), (11275, 7255420), (11521, 7100500), (12364, 6616375), (12910, 6336550), (14050, 5822410), (14201, 5760500), (15455, 5293100), (20500, 3990481), (22550, 3627710), (23042, 3550250), (25820, 3168275), (28100, 2911205), (28402, 2880250), (30910, 2646550), (32275, 2534620), (35125, 2328964), (45100, 1813855), (46084, 1775125), (52931, 1545500), (56375, 1451084), (56804, 1440125), (57605, 1420100), (61820, 1323275), (64550, 1267310), (70250, 1164482), (71005, 1152100), (77275, 1058620), (105862, 772750), (112750, 725542), (115210, 710050), (126731, 645500), (129100, 633655), (140500, 582241), (142010, 576050), (154550, 529310), (161375, 506924), (211724, 386375), (225500, 362771), (230420, 355025), (253462, 322750), (264655, 309100), (284020, 288025)]