78240825

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1163}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 157614912

約数和(自身を除く): 79374087

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 195, 207, 225, 299, 325, 345, 575, 585, 897, 975, 1035, 1163, 1495, 1725, 2691, 2925, 3489, 4485, 5175, 5815, 7475, 10467, 13455, 15119, 17445, 22425, 26749, 29075, 45357, 52335, 67275, 75595, 80247, 87225, 133745, 136071, 226785, 240741, 261675, 347737, 377975, 401235, 668725, 680355, 1043211, 1133925, 1203705, 1738685, 2006175, 3129633, 3401775, 5216055, 6018525, 8693425, 15648165, 26080275, 78240825]

約数ペア:

[(1, 78240825), (3, 26080275), (5, 15648165), (9, 8693425), (13, 6018525), (15, 5216055), (23, 3401775), (25, 3129633), (39, 2006175), (45, 1738685), (65, 1203705), (69, 1133925), (75, 1043211), (115, 680355), (117, 668725), (195, 401235), (207, 377975), (225, 347737), (299, 261675), (325, 240741), (345, 226785), (575, 136071), (585, 133745), (897, 87225), (975, 80247), (1035, 75595), (1163, 67275), (1495, 52335), (1725, 45357), (2691, 29075), (2925, 26749), (3489, 22425), (4485, 17445), (5175, 15119), (5815, 13455), (7475, 10467)]