20205120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1652

約数の個数: 112

約数和(自身を含む): 69128640

約数和(自身を除く): 48923520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 1619, 2080, 2496, 3120, 3238, 4160, 4857, 6240, 6476, 8095, 9714, 12480, 12952, 16190, 19428, 21047, 24285, 25904, 32380, 38856, 42094, 48570, 51808, 63141, 64760, 77712, 84188, 97140, 103616, 105235, 126282, 129520, 155424, 168376, 194280, 210470, 252564, 259040, 310848, 315705, 336752, 388560, 420940, 505128, 518080, 631410, 673504, 777120, 841880, 1010256, 1262820, 1347008, 1554240, 1683760, 2020512, 2525640, 3367520, 4041024, 5051280, 6735040, 10102560, 20205120]

約数ペア:

[(1, 20205120), (2, 10102560), (3, 6735040), (4, 5051280), (5, 4041024), (6, 3367520), (8, 2525640), (10, 2020512), (12, 1683760), (13, 1554240), (15, 1347008), (16, 1262820), (20, 1010256), (24, 841880), (26, 777120), (30, 673504), (32, 631410), (39, 518080), (40, 505128), (48, 420940), (52, 388560), (60, 336752), (64, 315705), (65, 310848), (78, 259040), (80, 252564), (96, 210470), (104, 194280), (120, 168376), (130, 155424), (156, 129520), (160, 126282), (192, 105235), (195, 103616), (208, 97140), (240, 84188), (260, 77712), (312, 64760), (320, 63141), (390, 51808), (416, 48570), (480, 42094), (520, 38856), (624, 32380), (780, 25904), (832, 24285), (960, 21047), (1040, 19428), (1248, 16190), (1560, 12952), (1619, 12480), (2080, 9714), (2496, 8095), (3120, 6476), (3238, 6240), (4160, 4857)]