40572640

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1061}}^1$

素因数の和:1315

約数の個数: 48

約数和(自身を含む): 96344640

約数和(自身を除く): 55772000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1061, 1195, 1912, 2122, 2390, 3824, 4244, 4780, 5305, 7648, 8488, 9560, 10610, 16976, 19120, 21220, 33952, 38240, 42440, 84880, 169760, 253579, 507158, 1014316, 1267895, 2028632, 2535790, 4057264, 5071580, 8114528, 10143160, 20286320, 40572640]

約数ペア:

[(1, 40572640), (2, 20286320), (4, 10143160), (5, 8114528), (8, 5071580), (10, 4057264), (16, 2535790), (20, 2028632), (32, 1267895), (40, 1014316), (80, 507158), (160, 253579), (239, 169760), (478, 84880), (956, 42440), (1061, 38240), (1195, 33952), (1912, 21220), (2122, 19120), (2390, 16976), (3824, 10610), (4244, 9560), (4780, 8488), (5305, 7648)]