81691470

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43223}}^1$

素因数の和:43246

約数の個数: 64

約数和(自身を含む): 248970240

約数和(自身を除く): 167278770

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43223, 86446, 129669, 216115, 259338, 302561, 389007, 432230, 605122, 648345, 778014, 907683, 1167021, 1296690, 1512805, 1815366, 1945035, 2334042, 2723049, 3025610, 3890070, 4538415, 5446098, 5835105, 8169147, 9076830, 11670210, 13615245, 16338294, 27230490, 40845735, 81691470]

約数ペア:

[(1, 81691470), (2, 40845735), (3, 27230490), (5, 16338294), (6, 13615245), (7, 11670210), (9, 9076830), (10, 8169147), (14, 5835105), (15, 5446098), (18, 4538415), (21, 3890070), (27, 3025610), (30, 2723049), (35, 2334042), (42, 1945035), (45, 1815366), (54, 1512805), (63, 1296690), (70, 1167021), (90, 907683), (105, 778014), (126, 648345), (135, 605122), (189, 432230), (210, 389007), (270, 302561), (315, 259338), (378, 216115), (630, 129669), (945, 86446), (1890, 43223)]