28312680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 94089600

約数和(自身を除く): 65776920

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, 89, 110, 120, 132, 165, 178, 220, 241, 264, 267, 330, 356, 440, 445, 482, 534, 660, 712, 723, 890, 964, 979, 1068, 1205, 1320, 1335, 1446, 1780, 1928, 1958, 2136, 2410, 2651, 2670, 2892, 2937, 3560, 3615, 3916, 4820, 4895, 5302, 5340, 5784, 5874, 7230, 7832, 7953, 9640, 9790, 10604, 10680, 11748, 13255, 14460, 14685, 15906, 19580, 21208, 21449, 23496, 26510, 28920, 29370, 31812, 39160, 39765, 42898, 53020, 58740, 63624, 64347, 79530, 85796, 106040, 107245, 117480, 128694, 159060, 171592, 214490, 235939, 257388, 318120, 321735, 428980, 471878, 514776, 643470, 707817, 857960, 943756, 1179695, 1286940, 1415634, 1887512, 2359390, 2573880, 2831268, 3539085, 4718780, 5662536, 7078170, 9437560, 14156340, 28312680]

約数ペア:

[(1, 28312680), (2, 14156340), (3, 9437560), (4, 7078170), (5, 5662536), (6, 4718780), (8, 3539085), (10, 2831268), (11, 2573880), (12, 2359390), (15, 1887512), (20, 1415634), (22, 1286940), (24, 1179695), (30, 943756), (33, 857960), (40, 707817), (44, 643470), (55, 514776), (60, 471878), (66, 428980), (88, 321735), (89, 318120), (110, 257388), (120, 235939), (132, 214490), (165, 171592), (178, 159060), (220, 128694), (241, 117480), (264, 107245), (267, 106040), (330, 85796), (356, 79530), (440, 64347), (445, 63624), (482, 58740), (534, 53020), (660, 42898), (712, 39765), (723, 39160), (890, 31812), (964, 29370), (979, 28920), (1068, 26510), (1205, 23496), (1320, 21449), (1335, 21208), (1446, 19580), (1780, 15906), (1928, 14685), (1958, 14460), (2136, 13255), (2410, 11748), (2651, 10680), (2670, 10604), (2892, 9790), (2937, 9640), (3560, 7953), (3615, 7832), (3916, 7230), (4820, 5874), (4895, 5784), (5302, 5340)]