201531290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 403107840

約数和(自身を除く): 201576550

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 107, 115, 190, 214, 230, 431, 437, 535, 862, 874, 1070, 2033, 2155, 2185, 2461, 4066, 4310, 4370, 4922, 8189, 9913, 10165, 12305, 16378, 19826, 20330, 24610, 40945, 46117, 46759, 49565, 81890, 92234, 93518, 99130, 188347, 230585, 233795, 376694, 461170, 467590, 876223, 941735, 1060691, 1752446, 1883470, 2121382, 4381115, 5303455, 8762230, 10606910, 20153129, 40306258, 100765645, 201531290]

約数ペア:

[(1, 201531290), (2, 100765645), (5, 40306258), (10, 20153129), (19, 10606910), (23, 8762230), (38, 5303455), (46, 4381115), (95, 2121382), (107, 1883470), (115, 1752446), (190, 1060691), (214, 941735), (230, 876223), (431, 467590), (437, 461170), (535, 376694), (862, 233795), (874, 230585), (1070, 188347), (2033, 99130), (2155, 93518), (2185, 92234), (2461, 81890), (4066, 49565), (4310, 46759), (4370, 46117), (4922, 40945), (8189, 24610), (9913, 20330), (10165, 19826), (12305, 16378)]