64692740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 159268032

約数和(自身を除く): 94575292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 263, 490, 502, 526, 980, 1004, 1052, 1255, 1315, 1757, 1841, 2510, 2630, 3514, 3682, 5020, 5260, 7028, 7364, 8785, 9205, 12299, 12887, 17570, 18410, 24598, 25774, 35140, 36820, 49196, 51548, 61495, 64435, 66013, 122990, 128870, 132026, 245980, 257740, 264052, 330065, 462091, 660130, 924182, 1320260, 1848364, 2310455, 3234637, 4620910, 6469274, 9241820, 12938548, 16173185, 32346370, 64692740]

約数ペア:

[(1, 64692740), (2, 32346370), (4, 16173185), (5, 12938548), (7, 9241820), (10, 6469274), (14, 4620910), (20, 3234637), (28, 2310455), (35, 1848364), (49, 1320260), (70, 924182), (98, 660130), (140, 462091), (196, 330065), (245, 264052), (251, 257740), (263, 245980), (490, 132026), (502, 128870), (526, 122990), (980, 66013), (1004, 64435), (1052, 61495), (1255, 51548), (1315, 49196), (1757, 36820), (1841, 35140), (2510, 25774), (2630, 24598), (3514, 18410), (3682, 17570), (5020, 12887), (5260, 12299), (7028, 9205), (7364, 8785)]