28769720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2777}}^1$

素因数の和:2832

約数の個数: 64

約数和(自身を含む): 76006080

約数和(自身を除く): 47236360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 2777, 5180, 5554, 10360, 11108, 13885, 19439, 22216, 27770, 38878, 55540, 77756, 97195, 102749, 111080, 155512, 194390, 205498, 388780, 410996, 513745, 719243, 777560, 821992, 1027490, 1438486, 2054980, 2876972, 3596215, 4109960, 5753944, 7192430, 14384860, 28769720]

約数ペア:

[(1, 28769720), (2, 14384860), (4, 7192430), (5, 5753944), (7, 4109960), (8, 3596215), (10, 2876972), (14, 2054980), (20, 1438486), (28, 1027490), (35, 821992), (37, 777560), (40, 719243), (56, 513745), (70, 410996), (74, 388780), (140, 205498), (148, 194390), (185, 155512), (259, 111080), (280, 102749), (296, 97195), (370, 77756), (518, 55540), (740, 38878), (1036, 27770), (1295, 22216), (1480, 19439), (2072, 13885), (2590, 11108), (2777, 10360), (5180, 5554)]