20888970544

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{193}}^1\times {\mathrm{3079}}^1$

素因数の和:3319

約数の個数: 80

約数和(自身を含む): 44085025600

約数和(自身を除く): 23196055056

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 193, 208, 338, 386, 676, 772, 1352, 1544, 2197, 2509, 2704, 3079, 3088, 4394, 5018, 6158, 8788, 10036, 12316, 17576, 20072, 24632, 32617, 35152, 40027, 40144, 49264, 65234, 80054, 130468, 160108, 260936, 320216, 424021, 520351, 521872, 594247, 640432, 848042, 1040702, 1188494, 1696084, 2081404, 2376988, 3392168, 4162808, 4753976, 6764563, 6784336, 7725211, 8325616, 9507952, 13529126, 15450422, 27058252, 30900844, 54116504, 61801688, 100427743, 108233008, 123603376, 200855486, 401710972, 803421944, 1305560659, 1606843888, 2611121318, 5222242636, 10444485272, 20888970544]

約数ペア:

[(1, 20888970544), (2, 10444485272), (4, 5222242636), (8, 2611121318), (13, 1606843888), (16, 1305560659), (26, 803421944), (52, 401710972), (104, 200855486), (169, 123603376), (193, 108233008), (208, 100427743), (338, 61801688), (386, 54116504), (676, 30900844), (772, 27058252), (1352, 15450422), (1544, 13529126), (2197, 9507952), (2509, 8325616), (2704, 7725211), (3079, 6784336), (3088, 6764563), (4394, 4753976), (5018, 4162808), (6158, 3392168), (8788, 2376988), (10036, 2081404), (12316, 1696084), (17576, 1188494), (20072, 1040702), (24632, 848042), (32617, 640432), (35152, 594247), (40027, 521872), (40144, 520351), (49264, 424021), (65234, 320216), (80054, 260936), (130468, 160108)]