20307560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:835

約数の個数: 96

約数和(自身を含む): 57312360

約数和(自身を除く): 37004800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 797, 910, 980, 1274, 1594, 1820, 1960, 2548, 3185, 3188, 3640, 3985, 5096, 5579, 6370, 6376, 7970, 10361, 11158, 12740, 15940, 20722, 22316, 25480, 27895, 31880, 39053, 41444, 44632, 51805, 55790, 72527, 78106, 82888, 103610, 111580, 145054, 156212, 195265, 207220, 223160, 290108, 312424, 362635, 390530, 414440, 507689, 580216, 725270, 781060, 1015378, 1450540, 1562120, 2030756, 2538445, 2901080, 4061512, 5076890, 10153780, 20307560]

約数ペア:

[(1, 20307560), (2, 10153780), (4, 5076890), (5, 4061512), (7, 2901080), (8, 2538445), (10, 2030756), (13, 1562120), (14, 1450540), (20, 1015378), (26, 781060), (28, 725270), (35, 580216), (40, 507689), (49, 414440), (52, 390530), (56, 362635), (65, 312424), (70, 290108), (91, 223160), (98, 207220), (104, 195265), (130, 156212), (140, 145054), (182, 111580), (196, 103610), (245, 82888), (260, 78106), (280, 72527), (364, 55790), (392, 51805), (455, 44632), (490, 41444), (520, 39053), (637, 31880), (728, 27895), (797, 25480), (910, 22316), (980, 20722), (1274, 15940), (1594, 12740), (1820, 11158), (1960, 10361), (2548, 7970), (3185, 6376), (3188, 6370), (3640, 5579), (3985, 5096)]