81961845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 165750528

約数和(自身を除く): 83788683

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 37, 51, 73, 85, 105, 111, 119, 185, 219, 255, 259, 289, 357, 365, 511, 555, 595, 629, 777, 867, 1095, 1241, 1295, 1445, 1533, 1785, 1887, 2023, 2555, 2701, 3145, 3723, 3885, 4335, 4403, 6069, 6205, 7665, 8103, 8687, 9435, 10115, 10693, 13209, 13505, 18615, 18907, 21097, 22015, 26061, 30345, 32079, 40515, 43435, 45917, 53465, 56721, 63291, 66045, 74851, 94535, 105485, 130305, 137751, 147679, 160395, 224553, 229585, 283605, 316455, 321419, 374255, 443037, 688755, 738395, 780589, 964257, 1122765, 1607095, 2215185, 2341767, 3902945, 4821285, 5464123, 11708835, 16392369, 27320615, 81961845]

約数ペア:

[(1, 81961845), (3, 27320615), (5, 16392369), (7, 11708835), (15, 5464123), (17, 4821285), (21, 3902945), (35, 2341767), (37, 2215185), (51, 1607095), (73, 1122765), (85, 964257), (105, 780589), (111, 738395), (119, 688755), (185, 443037), (219, 374255), (255, 321419), (259, 316455), (289, 283605), (357, 229585), (365, 224553), (511, 160395), (555, 147679), (595, 137751), (629, 130305), (777, 105485), (867, 94535), (1095, 74851), (1241, 66045), (1295, 63291), (1445, 56721), (1533, 53465), (1785, 45917), (1887, 43435), (2023, 40515), (2555, 32079), (2701, 30345), (3145, 26061), (3723, 22015), (3885, 21097), (4335, 18907), (4403, 18615), (6069, 13505), (6205, 13209), (7665, 10693), (8103, 10115), (8687, 9435)]