638078520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4177}}^1$

素因数の和:4277

約数の個数: 128

約数和(自身を含む): 2045548800

約数和(自身を除く): 1407470280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 67, 76, 95, 114, 120, 134, 152, 190, 201, 228, 268, 285, 335, 380, 402, 456, 536, 570, 670, 760, 804, 1005, 1140, 1273, 1340, 1608, 2010, 2280, 2546, 2680, 3819, 4020, 4177, 5092, 6365, 7638, 8040, 8354, 10184, 12531, 12730, 15276, 16708, 19095, 20885, 25062, 25460, 30552, 33416, 38190, 41770, 50124, 50920, 62655, 76380, 79363, 83540, 100248, 125310, 152760, 158726, 167080, 238089, 250620, 279859, 317452, 396815, 476178, 501240, 559718, 634904, 793630, 839577, 952356, 1119436, 1190445, 1399295, 1587260, 1679154, 1904712, 2238872, 2380890, 2798590, 3174520, 3358308, 4197885, 4761780, 5317321, 5597180, 6716616, 8395770, 9523560, 10634642, 11194360, 15951963, 16791540, 21269284, 26586605, 31903926, 33583080, 42538568, 53173210, 63807852, 79759815, 106346420, 127615704, 159519630, 212692840, 319039260, 638078520]

約数ペア:

[(1, 638078520), (2, 319039260), (3, 212692840), (4, 159519630), (5, 127615704), (6, 106346420), (8, 79759815), (10, 63807852), (12, 53173210), (15, 42538568), (19, 33583080), (20, 31903926), (24, 26586605), (30, 21269284), (38, 16791540), (40, 15951963), (57, 11194360), (60, 10634642), (67, 9523560), (76, 8395770), (95, 6716616), (114, 5597180), (120, 5317321), (134, 4761780), (152, 4197885), (190, 3358308), (201, 3174520), (228, 2798590), (268, 2380890), (285, 2238872), (335, 1904712), (380, 1679154), (402, 1587260), (456, 1399295), (536, 1190445), (570, 1119436), (670, 952356), (760, 839577), (804, 793630), (1005, 634904), (1140, 559718), (1273, 501240), (1340, 476178), (1608, 396815), (2010, 317452), (2280, 279859), (2546, 250620), (2680, 238089), (3819, 167080), (4020, 158726), (4177, 152760), (5092, 125310), (6365, 100248), (7638, 83540), (8040, 79363), (8354, 76380), (10184, 62655), (12531, 50920), (12730, 50124), (15276, 41770), (16708, 38190), (19095, 33416), (20885, 30552), (25062, 25460)]