78868680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:575

約数の個数: 128

約数和(自身を含む): 260496000

約数和(自身を除く): 181627320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 149, 165, 220, 264, 298, 330, 401, 440, 447, 596, 660, 745, 802, 894, 1192, 1203, 1320, 1490, 1604, 1639, 1788, 2005, 2235, 2406, 2980, 3208, 3278, 3576, 4010, 4411, 4470, 4812, 4917, 5960, 6015, 6556, 8020, 8195, 8822, 8940, 9624, 9834, 12030, 13112, 13233, 16040, 16390, 17644, 17880, 19668, 22055, 24060, 24585, 26466, 32780, 35288, 39336, 44110, 48120, 49170, 52932, 59749, 65560, 66165, 88220, 98340, 105864, 119498, 132330, 176440, 179247, 196680, 238996, 264660, 298745, 358494, 477992, 529320, 597490, 657239, 716988, 896235, 1194980, 1314478, 1433976, 1792470, 1971717, 2389960, 2628956, 3286195, 3584940, 3943434, 5257912, 6572390, 7169880, 7886868, 9858585, 13144780, 15773736, 19717170, 26289560, 39434340, 78868680]

約数ペア:

[(1, 78868680), (2, 39434340), (3, 26289560), (4, 19717170), (5, 15773736), (6, 13144780), (8, 9858585), (10, 7886868), (11, 7169880), (12, 6572390), (15, 5257912), (20, 3943434), (22, 3584940), (24, 3286195), (30, 2628956), (33, 2389960), (40, 1971717), (44, 1792470), (55, 1433976), (60, 1314478), (66, 1194980), (88, 896235), (110, 716988), (120, 657239), (132, 597490), (149, 529320), (165, 477992), (220, 358494), (264, 298745), (298, 264660), (330, 238996), (401, 196680), (440, 179247), (447, 176440), (596, 132330), (660, 119498), (745, 105864), (802, 98340), (894, 88220), (1192, 66165), (1203, 65560), (1320, 59749), (1490, 52932), (1604, 49170), (1639, 48120), (1788, 44110), (2005, 39336), (2235, 35288), (2406, 32780), (2980, 26466), (3208, 24585), (3278, 24060), (3576, 22055), (4010, 19668), (4411, 17880), (4470, 17644), (4812, 16390), (4917, 16040), (5960, 13233), (6015, 13112), (6556, 12030), (8020, 9834), (8195, 9624), (8822, 8940)]