30978045

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 80

約数和(自身を含む): 65049600

約数和(自身を除く): 34071555

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 223, 245, 315, 343, 405, 441, 567, 669, 735, 945, 1029, 1115, 1323, 1561, 1715, 2007, 2205, 2835, 3087, 3345, 3969, 4683, 5145, 6021, 6615, 7805, 9261, 10035, 10927, 14049, 15435, 18063, 19845, 23415, 27783, 30105, 32781, 42147, 46305, 54635, 70245, 76489, 90315, 98343, 126441, 138915, 163905, 210735, 229467, 295029, 382445, 491715, 632205, 688401, 885087, 1147335, 1475145, 2065203, 3442005, 4425435, 6195609, 10326015, 30978045]

約数ペア:

[(1, 30978045), (3, 10326015), (5, 6195609), (7, 4425435), (9, 3442005), (15, 2065203), (21, 1475145), (27, 1147335), (35, 885087), (45, 688401), (49, 632205), (63, 491715), (81, 382445), (105, 295029), (135, 229467), (147, 210735), (189, 163905), (223, 138915), (245, 126441), (315, 98343), (343, 90315), (405, 76489), (441, 70245), (567, 54635), (669, 46305), (735, 42147), (945, 32781), (1029, 30105), (1115, 27783), (1323, 23415), (1561, 19845), (1715, 18063), (2007, 15435), (2205, 14049), (2835, 10927), (3087, 10035), (3345, 9261), (3969, 7805), (4683, 6615), (5145, 6021)]