78400980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{2963}}^1$

素因数の和:2995

約数の個数: 144

約数和(自身を含む): 283832640

約数和(自身を除く): 205431660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 2963, 3780, 4410, 5292, 5926, 6615, 8820, 8889, 11852, 13230, 14815, 17778, 20741, 26460, 26667, 29630, 35556, 41482, 44445, 53334, 59260, 62223, 80001, 82964, 88890, 103705, 106668, 124446, 133335, 145187, 160002, 177780, 186669, 207410, 248892, 266670, 290374, 311115, 320004, 373338, 400005, 414820, 435561, 533340, 560007, 580748, 622230, 725935, 746676, 800010, 871122, 933345, 1120014, 1244460, 1306683, 1451870, 1600020, 1742244, 1866690, 2177805, 2240028, 2613366, 2800035, 2903740, 3733380, 3920049, 4355610, 5226732, 5600070, 6533415, 7840098, 8711220, 11200140, 13066830, 15680196, 19600245, 26133660, 39200490, 78400980]

約数ペア:

[(1, 78400980), (2, 39200490), (3, 26133660), (4, 19600245), (5, 15680196), (6, 13066830), (7, 11200140), (9, 8711220), (10, 7840098), (12, 6533415), (14, 5600070), (15, 5226732), (18, 4355610), (20, 3920049), (21, 3733380), (27, 2903740), (28, 2800035), (30, 2613366), (35, 2240028), (36, 2177805), (42, 1866690), (45, 1742244), (49, 1600020), (54, 1451870), (60, 1306683), (63, 1244460), (70, 1120014), (84, 933345), (90, 871122), (98, 800010), (105, 746676), (108, 725935), (126, 622230), (135, 580748), (140, 560007), (147, 533340), (180, 435561), (189, 414820), (196, 400005), (210, 373338), (245, 320004), (252, 311115), (270, 290374), (294, 266670), (315, 248892), (378, 207410), (420, 186669), (441, 177780), (490, 160002), (540, 145187), (588, 133335), (630, 124446), (735, 106668), (756, 103705), (882, 88890), (945, 82964), (980, 80001), (1260, 62223), (1323, 59260), (1470, 53334), (1764, 44445), (1890, 41482), (2205, 35556), (2646, 29630), (2940, 26667), (2963, 26460), (3780, 20741), (4410, 17778), (5292, 14815), (5926, 13230), (6615, 11852), (8820, 8889)]