81915120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{16253}}^1$

素因数の和:16279

約数の個数: 120

約数和(自身を含む): 314417376

約数和(自身を除く): 232502256

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 16253, 32506, 48759, 65012, 81265, 97518, 113771, 130024, 146277, 162530, 195036, 227542, 243795, 260048, 292554, 325060, 341313, 390072, 455084, 487590, 568855, 585108, 650120, 682626, 731385, 780144, 910168, 975180, 1023939, 1137710, 1170216, 1300240, 1365252, 1462770, 1706565, 1820336, 1950360, 2047878, 2275420, 2340432, 2730504, 2925540, 3413130, 3900720, 4095756, 4550840, 5119695, 5461008, 5851080, 6826260, 8191512, 9101680, 10239390, 11702160, 13652520, 16383024, 20478780, 27305040, 40957560, 81915120]

約数ペア:

[(1, 81915120), (2, 40957560), (3, 27305040), (4, 20478780), (5, 16383024), (6, 13652520), (7, 11702160), (8, 10239390), (9, 9101680), (10, 8191512), (12, 6826260), (14, 5851080), (15, 5461008), (16, 5119695), (18, 4550840), (20, 4095756), (21, 3900720), (24, 3413130), (28, 2925540), (30, 2730504), (35, 2340432), (36, 2275420), (40, 2047878), (42, 1950360), (45, 1820336), (48, 1706565), (56, 1462770), (60, 1365252), (63, 1300240), (70, 1170216), (72, 1137710), (80, 1023939), (84, 975180), (90, 910168), (105, 780144), (112, 731385), (120, 682626), (126, 650120), (140, 585108), (144, 568855), (168, 487590), (180, 455084), (210, 390072), (240, 341313), (252, 325060), (280, 292554), (315, 260048), (336, 243795), (360, 227542), (420, 195036), (504, 162530), (560, 146277), (630, 130024), (720, 113771), (840, 97518), (1008, 81265), (1260, 65012), (1680, 48759), (2520, 32506), (5040, 16253)]