20804897744

素因数分解:

$2^4\times {\mathrm{79}}^2\times {\mathrm{89}}^1\times {\mathrm{2341}}^1$

素因数の和:2596

約数の個数: 60

約数和(自身を含む): 41302551780

約数和(自身を除く): 20497654036

約数列:

[1, 2, 4, 8, 16, 79, 89, 158, 178, 316, 356, 632, 712, 1264, 1424, 2341, 4682, 6241, 7031, 9364, 12482, 14062, 18728, 24964, 28124, 37456, 49928, 56248, 99856, 112496, 184939, 208349, 369878, 416698, 555449, 739756, 833396, 1110898, 1479512, 1666792, 2221796, 2959024, 3333584, 4443592, 8887184, 14610181, 16459571, 29220362, 32919142, 58440724, 65838284, 116881448, 131676568, 233762896, 263353136, 1300306109, 2600612218, 5201224436, 10402448872, 20804897744]

約数ペア:

[(1, 20804897744), (2, 10402448872), (4, 5201224436), (8, 2600612218), (16, 1300306109), (79, 263353136), (89, 233762896), (158, 131676568), (178, 116881448), (316, 65838284), (356, 58440724), (632, 32919142), (712, 29220362), (1264, 16459571), (1424, 14610181), (2341, 8887184), (4682, 4443592), (6241, 3333584), (7031, 2959024), (9364, 2221796), (12482, 1666792), (14062, 1479512), (18728, 1110898), (24964, 833396), (28124, 739756), (37456, 555449), (49928, 416698), (56248, 369878), (99856, 208349), (112496, 184939)]