821567270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 1564323840

約数和(自身を除く): 742756570

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 163, 229, 310, 326, 355, 458, 710, 815, 1145, 1630, 2201, 2290, 4402, 5053, 7099, 10106, 11005, 11573, 14198, 16259, 22010, 23146, 25265, 32518, 35495, 37327, 50530, 57865, 70990, 74654, 81295, 115730, 162590, 186635, 358763, 373270, 504029, 717526, 1008058, 1157137, 1793815, 2314274, 2520145, 2650217, 3587630, 5040290, 5300434, 5785685, 11571370, 13251085, 26502170, 82156727, 164313454, 410783635, 821567270]

約数ペア:

[(1, 821567270), (2, 410783635), (5, 164313454), (10, 82156727), (31, 26502170), (62, 13251085), (71, 11571370), (142, 5785685), (155, 5300434), (163, 5040290), (229, 3587630), (310, 2650217), (326, 2520145), (355, 2314274), (458, 1793815), (710, 1157137), (815, 1008058), (1145, 717526), (1630, 504029), (2201, 373270), (2290, 358763), (4402, 186635), (5053, 162590), (7099, 115730), (10106, 81295), (11005, 74654), (11573, 70990), (14198, 57865), (16259, 50530), (22010, 37327), (23146, 35495), (25265, 32518)]