80465840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1579}}^1$

素因数の和:1619

約数の個数: 120

約数和(自身を含む): 234516240

約数和(自身を除く): 154050400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1456, 1579, 1820, 1960, 2548, 3158, 3185, 3640, 3920, 5096, 6316, 6370, 7280, 7895, 10192, 11053, 12632, 12740, 15790, 20527, 22106, 25264, 25480, 31580, 41054, 44212, 50960, 55265, 63160, 77371, 82108, 88424, 102635, 110530, 126320, 143689, 154742, 164216, 176848, 205270, 221060, 287378, 309484, 328432, 386855, 410540, 442120, 574756, 618968, 718445, 773710, 821080, 884240, 1005823, 1149512, 1237936, 1436890, 1547420, 1642160, 2011646, 2299024, 2873780, 3094840, 4023292, 5029115, 5747560, 6189680, 8046584, 10058230, 11495120, 16093168, 20116460, 40232920, 80465840]

約数ペア:

[(1, 80465840), (2, 40232920), (4, 20116460), (5, 16093168), (7, 11495120), (8, 10058230), (10, 8046584), (13, 6189680), (14, 5747560), (16, 5029115), (20, 4023292), (26, 3094840), (28, 2873780), (35, 2299024), (40, 2011646), (49, 1642160), (52, 1547420), (56, 1436890), (65, 1237936), (70, 1149512), (80, 1005823), (91, 884240), (98, 821080), (104, 773710), (112, 718445), (130, 618968), (140, 574756), (182, 442120), (196, 410540), (208, 386855), (245, 328432), (260, 309484), (280, 287378), (364, 221060), (392, 205270), (455, 176848), (490, 164216), (520, 154742), (560, 143689), (637, 126320), (728, 110530), (784, 102635), (910, 88424), (980, 82108), (1040, 77371), (1274, 63160), (1456, 55265), (1579, 50960), (1820, 44212), (1960, 41054), (2548, 31580), (3158, 25480), (3185, 25264), (3640, 22106), (3920, 20527), (5096, 15790), (6316, 12740), (6370, 12632), (7280, 11053), (7895, 10192)]