28986020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 96

約数和(自身を含む): 77656320

約数和(自身を除く): 48670300

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 476, 532, 595, 641, 646, 665, 1190, 1282, 1292, 1330, 1615, 2261, 2380, 2564, 2660, 3205, 3230, 4487, 4522, 6410, 6460, 8974, 9044, 10897, 11305, 12179, 12820, 17948, 21794, 22435, 22610, 24358, 43588, 44870, 45220, 48716, 54485, 60895, 76279, 85253, 89740, 108970, 121790, 152558, 170506, 207043, 217940, 243580, 305116, 341012, 381395, 414086, 426265, 762790, 828172, 852530, 1035215, 1449301, 1525580, 1705060, 2070430, 2898602, 4140860, 5797204, 7246505, 14493010, 28986020]

約数ペア:

[(1, 28986020), (2, 14493010), (4, 7246505), (5, 5797204), (7, 4140860), (10, 2898602), (14, 2070430), (17, 1705060), (19, 1525580), (20, 1449301), (28, 1035215), (34, 852530), (35, 828172), (38, 762790), (68, 426265), (70, 414086), (76, 381395), (85, 341012), (95, 305116), (119, 243580), (133, 217940), (140, 207043), (170, 170506), (190, 152558), (238, 121790), (266, 108970), (323, 89740), (340, 85253), (380, 76279), (476, 60895), (532, 54485), (595, 48716), (641, 45220), (646, 44870), (665, 43588), (1190, 24358), (1282, 22610), (1292, 22435), (1330, 21794), (1615, 17948), (2261, 12820), (2380, 12179), (2564, 11305), (2660, 10897), (3205, 9044), (3230, 8974), (4487, 6460), (4522, 6410)]