81228525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:112

約数の個数: 108

約数和(自身を含む): 168444576

約数和(自身を除く): 87216051

約数列:

[1, 3, 5, 7, 15, 21, 23, 25, 31, 35, 49, 69, 75, 93, 105, 115, 147, 155, 161, 175, 217, 245, 345, 465, 483, 525, 575, 651, 713, 735, 775, 805, 961, 1085, 1127, 1225, 1519, 1725, 2139, 2325, 2415, 2883, 3255, 3381, 3565, 3675, 4025, 4557, 4805, 4991, 5425, 5635, 6727, 7595, 10695, 12075, 14415, 14973, 16275, 16905, 17825, 20181, 22103, 22785, 24025, 24955, 28175, 33635, 34937, 37975, 47089, 53475, 66309, 72075, 74865, 84525, 100905, 104811, 110515, 113925, 124775, 141267, 154721, 168175, 174685, 235445, 331545, 374325, 464163, 504525, 524055, 552575, 706335, 773605, 873425, 1083047, 1177225, 1657725, 2320815, 2620275, 3249141, 3531675, 3868025, 5415235, 11604075, 16245705, 27076175, 81228525]

約数ペア:

[(1, 81228525), (3, 27076175), (5, 16245705), (7, 11604075), (15, 5415235), (21, 3868025), (23, 3531675), (25, 3249141), (31, 2620275), (35, 2320815), (49, 1657725), (69, 1177225), (75, 1083047), (93, 873425), (105, 773605), (115, 706335), (147, 552575), (155, 524055), (161, 504525), (175, 464163), (217, 374325), (245, 331545), (345, 235445), (465, 174685), (483, 168175), (525, 154721), (575, 141267), (651, 124775), (713, 113925), (735, 110515), (775, 104811), (805, 100905), (961, 84525), (1085, 74865), (1127, 72075), (1225, 66309), (1519, 53475), (1725, 47089), (2139, 37975), (2325, 34937), (2415, 33635), (2883, 28175), (3255, 24955), (3381, 24025), (3565, 22785), (3675, 22103), (4025, 20181), (4557, 17825), (4805, 16905), (4991, 16275), (5425, 14973), (5635, 14415), (6727, 12075), (7595, 10695)]