81916920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:347

約数の個数: 160

約数和(自身を含む): 278871120

約数和(自身を除く): 196954200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 131, 135, 162, 180, 193, 216, 262, 270, 324, 360, 386, 393, 405, 524, 540, 579, 648, 655, 772, 786, 810, 965, 1048, 1080, 1158, 1179, 1310, 1544, 1572, 1620, 1737, 1930, 1965, 2316, 2358, 2620, 2895, 3144, 3240, 3474, 3537, 3860, 3930, 4632, 4716, 5211, 5240, 5790, 5895, 6948, 7074, 7720, 7860, 8685, 9432, 10422, 10611, 11580, 11790, 13896, 14148, 15633, 15720, 17370, 17685, 20844, 21222, 23160, 23580, 25283, 26055, 28296, 31266, 34740, 35370, 41688, 42444, 47160, 50566, 52110, 53055, 62532, 69480, 70740, 75849, 78165, 84888, 101132, 104220, 106110, 125064, 126415, 141480, 151698, 156330, 202264, 208440, 212220, 227547, 252830, 303396, 312660, 379245, 424440, 455094, 505660, 606792, 625320, 682641, 758490, 910188, 1011320, 1137735, 1365282, 1516980, 1820376, 2047923, 2275470, 2730564, 3033960, 3413205, 4095846, 4550940, 5461128, 6826410, 8191692, 9101880, 10239615, 13652820, 16383384, 20479230, 27305640, 40958460, 81916920]

約数ペア:

[(1, 81916920), (2, 40958460), (3, 27305640), (4, 20479230), (5, 16383384), (6, 13652820), (8, 10239615), (9, 9101880), (10, 8191692), (12, 6826410), (15, 5461128), (18, 4550940), (20, 4095846), (24, 3413205), (27, 3033960), (30, 2730564), (36, 2275470), (40, 2047923), (45, 1820376), (54, 1516980), (60, 1365282), (72, 1137735), (81, 1011320), (90, 910188), (108, 758490), (120, 682641), (131, 625320), (135, 606792), (162, 505660), (180, 455094), (193, 424440), (216, 379245), (262, 312660), (270, 303396), (324, 252830), (360, 227547), (386, 212220), (393, 208440), (405, 202264), (524, 156330), (540, 151698), (579, 141480), (648, 126415), (655, 125064), (772, 106110), (786, 104220), (810, 101132), (965, 84888), (1048, 78165), (1080, 75849), (1158, 70740), (1179, 69480), (1310, 62532), (1544, 53055), (1572, 52110), (1620, 50566), (1737, 47160), (1930, 42444), (1965, 41688), (2316, 35370), (2358, 34740), (2620, 31266), (2895, 28296), (3144, 26055), (3240, 25283), (3474, 23580), (3537, 23160), (3860, 21222), (3930, 20844), (4632, 17685), (4716, 17370), (5211, 15720), (5240, 15633), (5790, 14148), (5895, 13896), (6948, 11790), (7074, 11580), (7720, 10611), (7860, 10422), (8685, 9432)]