20176839928

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1\times {\mathrm{3547}}^1$

素因数の和:4364

約数の個数: 64

約数和(自身を含む): 43591011840

約数和(自身を除く): 23414171912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 647, 1099, 1256, 1294, 2198, 2588, 3547, 4396, 4529, 5176, 7094, 8792, 9058, 14188, 18116, 24829, 28376, 36232, 49658, 99316, 101579, 198632, 203158, 406316, 556879, 711053, 812632, 1113758, 1422106, 2227516, 2294909, 2844212, 3898153, 4455032, 4589818, 5688424, 7796306, 9179636, 15592612, 16064363, 18359272, 31185224, 32128726, 64257452, 128514904, 360300713, 720601426, 1441202852, 2522104991, 2882405704, 5044209982, 10088419964, 20176839928]

約数ペア:

[(1, 20176839928), (2, 10088419964), (4, 5044209982), (7, 2882405704), (8, 2522104991), (14, 1441202852), (28, 720601426), (56, 360300713), (157, 128514904), (314, 64257452), (628, 32128726), (647, 31185224), (1099, 18359272), (1256, 16064363), (1294, 15592612), (2198, 9179636), (2588, 7796306), (3547, 5688424), (4396, 4589818), (4529, 4455032), (5176, 3898153), (7094, 2844212), (8792, 2294909), (9058, 2227516), (14188, 1422106), (18116, 1113758), (24829, 812632), (28376, 711053), (36232, 556879), (49658, 406316), (99316, 203158), (101579, 198632)]