20257160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6577}}^1$

素因数の和:6606

約数の個数: 64

約数和(自身を含む): 56833920

約数和(自身を除く): 36576760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6577, 13154, 26308, 32885, 46039, 52616, 65770, 72347, 92078, 131540, 144694, 184156, 230195, 263080, 289388, 361735, 368312, 460390, 506429, 578776, 723470, 920780, 1012858, 1446940, 1841560, 2025716, 2532145, 2893880, 4051432, 5064290, 10128580, 20257160]

約数ペア:

[(1, 20257160), (2, 10128580), (4, 5064290), (5, 4051432), (7, 2893880), (8, 2532145), (10, 2025716), (11, 1841560), (14, 1446940), (20, 1012858), (22, 920780), (28, 723470), (35, 578776), (40, 506429), (44, 460390), (55, 368312), (56, 361735), (70, 289388), (77, 263080), (88, 230195), (110, 184156), (140, 144694), (154, 131540), (220, 92078), (280, 72347), (308, 65770), (385, 52616), (440, 46039), (616, 32885), (770, 26308), (1540, 13154), (3080, 6577)]