40945240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{569}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 105883200

約数和(自身を除く): 64937960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 569, 1028, 1138, 1285, 1799, 2056, 2276, 2570, 2845, 3598, 3983, 4552, 5140, 5690, 7196, 7966, 8995, 10280, 11380, 14392, 15932, 17990, 19915, 22760, 31864, 35980, 39830, 71960, 79660, 146233, 159320, 292466, 584932, 731165, 1023631, 1169864, 1462330, 2047262, 2924660, 4094524, 5118155, 5849320, 8189048, 10236310, 20472620, 40945240]

約数ペア:

[(1, 40945240), (2, 20472620), (4, 10236310), (5, 8189048), (7, 5849320), (8, 5118155), (10, 4094524), (14, 2924660), (20, 2047262), (28, 1462330), (35, 1169864), (40, 1023631), (56, 731165), (70, 584932), (140, 292466), (257, 159320), (280, 146233), (514, 79660), (569, 71960), (1028, 39830), (1138, 35980), (1285, 31864), (1799, 22760), (2056, 19915), (2276, 17990), (2570, 15932), (2845, 14392), (3598, 11380), (3983, 10280), (4552, 8995), (5140, 7966), (5690, 7196)]