81740790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1229}}^1$

素因数の和:1981

約数の個数: 48

約数和(自身を含む): 212986800

約数和(自身を除く): 131246010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 739, 1229, 1478, 2217, 2458, 3687, 3695, 4434, 6145, 6651, 7374, 7390, 11061, 11085, 12290, 13302, 18435, 22122, 22170, 33255, 36870, 55305, 66510, 110610, 908231, 1816462, 2724693, 4541155, 5449386, 8174079, 9082310, 13623465, 16348158, 27246930, 40870395, 81740790]

約数ペア:

[(1, 81740790), (2, 40870395), (3, 27246930), (5, 16348158), (6, 13623465), (9, 9082310), (10, 8174079), (15, 5449386), (18, 4541155), (30, 2724693), (45, 1816462), (90, 908231), (739, 110610), (1229, 66510), (1478, 55305), (2217, 36870), (2458, 33255), (3687, 22170), (3695, 22122), (4434, 18435), (6145, 13302), (6651, 12290), (7374, 11085), (7390, 11061)]