20154480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1063}}^1$

素因数の和:1158

約数の個数: 80

約数和(自身を含む): 63329280

約数和(自身を除く): 43174800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1063, 1185, 1264, 1580, 1896, 2126, 2370, 3160, 3189, 3792, 4252, 4740, 5315, 6320, 6378, 8504, 9480, 10630, 12756, 15945, 17008, 18960, 21260, 25512, 31890, 42520, 51024, 63780, 83977, 85040, 127560, 167954, 251931, 255120, 335908, 419885, 503862, 671816, 839770, 1007724, 1259655, 1343632, 1679540, 2015448, 2519310, 3359080, 4030896, 5038620, 6718160, 10077240, 20154480]

約数ペア:

[(1, 20154480), (2, 10077240), (3, 6718160), (4, 5038620), (5, 4030896), (6, 3359080), (8, 2519310), (10, 2015448), (12, 1679540), (15, 1343632), (16, 1259655), (20, 1007724), (24, 839770), (30, 671816), (40, 503862), (48, 419885), (60, 335908), (79, 255120), (80, 251931), (120, 167954), (158, 127560), (237, 85040), (240, 83977), (316, 63780), (395, 51024), (474, 42520), (632, 31890), (790, 25512), (948, 21260), (1063, 18960), (1185, 17008), (1264, 15945), (1580, 12756), (1896, 10630), (2126, 9480), (2370, 8504), (3160, 6378), (3189, 6320), (3792, 5315), (4252, 4740)]