991112220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^3\times {\mathrm{5351}}^1$

素因数の和:5390

約数の個数: 192

約数和(自身を含む): 3596544000

約数和(自身を除く): 2605431780

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, 343, 378, 420, 441, 490, 540, 588, 630, 686, 735, 756, 882, 945, 980, 1029, 1260, 1323, 1372, 1470, 1715, 1764, 1890, 2058, 2205, 2646, 2940, 3087, 3430, 3780, 4116, 4410, 5145, 5292, 5351, 6174, 6615, 6860, 8820, 9261, 10290, 10702, 12348, 13230, 15435, 16053, 18522, 20580, 21404, 26460, 26755, 30870, 32106, 37044, 37457, 46305, 48159, 53510, 61740, 64212, 74914, 80265, 92610, 96318, 107020, 112371, 144477, 149828, 160530, 185220, 187285, 192636, 224742, 240795, 262199, 288954, 321060, 337113, 374570, 449484, 481590, 524398, 561855, 577908, 674226, 722385, 749140, 786597, 963180, 1011339, 1048796, 1123710, 1310995, 1348452, 1444770, 1573194, 1685565, 1835393, 2022678, 2247420, 2359791, 2621990, 2889540, 3146388, 3371130, 3670786, 3932985, 4045356, 4719582, 5056695, 5243980, 5506179, 6742260, 7079373, 7341572, 7865970, 9176965, 9439164, 10113390, 11012358, 11798955, 14158746, 15731940, 16518537, 18353930, 20226780, 22024716, 23597910, 27530895, 28317492, 33037074, 35396865, 36707860, 47195820, 49555611, 55061790, 66074148, 70793730, 82592685, 99111222, 110123580, 141587460, 165185370, 198222444, 247778055, 330370740, 495556110, 991112220]

約数ペア:

[(1, 991112220), (2, 495556110), (3, 330370740), (4, 247778055), (5, 198222444), (6, 165185370), (7, 141587460), (9, 110123580), (10, 99111222), (12, 82592685), (14, 70793730), (15, 66074148), (18, 55061790), (20, 49555611), (21, 47195820), (27, 36707860), (28, 35396865), (30, 33037074), (35, 28317492), (36, 27530895), (42, 23597910), (45, 22024716), (49, 20226780), (54, 18353930), (60, 16518537), (63, 15731940), (70, 14158746), (84, 11798955), (90, 11012358), (98, 10113390), (105, 9439164), (108, 9176965), (126, 7865970), (135, 7341572), (140, 7079373), (147, 6742260), (180, 5506179), (189, 5243980), (196, 5056695), (210, 4719582), (245, 4045356), (252, 3932985), (270, 3670786), (294, 3371130), (315, 3146388), (343, 2889540), (378, 2621990), (420, 2359791), (441, 2247420), (490, 2022678), (540, 1835393), (588, 1685565), (630, 1573194), (686, 1444770), (735, 1348452), (756, 1310995), (882, 1123710), (945, 1048796), (980, 1011339), (1029, 963180), (1260, 786597), (1323, 749140), (1372, 722385), (1470, 674226), (1715, 577908), (1764, 561855), (1890, 524398), (2058, 481590), (2205, 449484), (2646, 374570), (2940, 337113), (3087, 321060), (3430, 288954), (3780, 262199), (4116, 240795), (4410, 224742), (5145, 192636), (5292, 187285), (5351, 185220), (6174, 160530), (6615, 149828), (6860, 144477), (8820, 112371), (9261, 107020), (10290, 96318), (10702, 92610), (12348, 80265), (13230, 74914), (15435, 64212), (16053, 61740), (18522, 53510), (20580, 48159), (21404, 46305), (26460, 37457), (26755, 37044), (30870, 32106)]