81306120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2251}}^1$

素因数の和:2315

約数の個数: 128

約数和(自身を含む): 285373440

約数和(自身を除く): 204067320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 840, 860, 903, 1032, 1204, 1290, 1505, 1720, 1806, 2251, 2408, 2580, 3010, 3612, 4502, 4515, 5160, 6020, 6753, 7224, 9004, 9030, 11255, 12040, 13506, 15757, 18008, 18060, 22510, 27012, 31514, 33765, 36120, 45020, 47271, 54024, 63028, 67530, 78785, 90040, 94542, 96793, 126056, 135060, 157570, 189084, 193586, 236355, 270120, 290379, 315140, 378168, 387172, 472710, 483965, 580758, 630280, 677551, 774344, 945420, 967930, 1161516, 1355102, 1451895, 1890840, 1935860, 2032653, 2323032, 2710204, 2903790, 3387755, 3871720, 4065306, 5420408, 5807580, 6775510, 8130612, 10163265, 11615160, 13551020, 16261224, 20326530, 27102040, 40653060, 81306120]

約数ペア:

[(1, 81306120), (2, 40653060), (3, 27102040), (4, 20326530), (5, 16261224), (6, 13551020), (7, 11615160), (8, 10163265), (10, 8130612), (12, 6775510), (14, 5807580), (15, 5420408), (20, 4065306), (21, 3871720), (24, 3387755), (28, 2903790), (30, 2710204), (35, 2323032), (40, 2032653), (42, 1935860), (43, 1890840), (56, 1451895), (60, 1355102), (70, 1161516), (84, 967930), (86, 945420), (105, 774344), (120, 677551), (129, 630280), (140, 580758), (168, 483965), (172, 472710), (210, 387172), (215, 378168), (258, 315140), (280, 290379), (301, 270120), (344, 236355), (420, 193586), (430, 189084), (516, 157570), (602, 135060), (645, 126056), (840, 96793), (860, 94542), (903, 90040), (1032, 78785), (1204, 67530), (1290, 63028), (1505, 54024), (1720, 47271), (1806, 45020), (2251, 36120), (2408, 33765), (2580, 31514), (3010, 27012), (3612, 22510), (4502, 18060), (4515, 18008), (5160, 15757), (6020, 13506), (6753, 12040), (7224, 11255), (9004, 9030)]