28926040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 77079600

約数和(自身を除く): 48153560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 286, 338, 389, 440, 520, 572, 676, 715, 778, 845, 1144, 1352, 1430, 1556, 1690, 1859, 1945, 2860, 3112, 3380, 3718, 3890, 4279, 5057, 5720, 6760, 7436, 7780, 8558, 9295, 10114, 14872, 15560, 17116, 18590, 20228, 21395, 25285, 34232, 37180, 40456, 42790, 50570, 55627, 65741, 74360, 85580, 101140, 111254, 131482, 171160, 202280, 222508, 262964, 278135, 328705, 445016, 525928, 556270, 657410, 723151, 1112540, 1314820, 1446302, 2225080, 2629640, 2892604, 3615755, 5785208, 7231510, 14463020, 28926040]

約数ペア:

[(1, 28926040), (2, 14463020), (4, 7231510), (5, 5785208), (8, 3615755), (10, 2892604), (11, 2629640), (13, 2225080), (20, 1446302), (22, 1314820), (26, 1112540), (40, 723151), (44, 657410), (52, 556270), (55, 525928), (65, 445016), (88, 328705), (104, 278135), (110, 262964), (130, 222508), (143, 202280), (169, 171160), (220, 131482), (260, 111254), (286, 101140), (338, 85580), (389, 74360), (440, 65741), (520, 55627), (572, 50570), (676, 42790), (715, 40456), (778, 37180), (845, 34232), (1144, 25285), (1352, 21395), (1430, 20228), (1556, 18590), (1690, 17116), (1859, 15560), (1945, 14872), (2860, 10114), (3112, 9295), (3380, 8558), (3718, 7780), (3890, 7436), (4279, 6760), (5057, 5720)]