19447904

素因数分解:

$2^5\times 7^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 72

約数和(自身を含む): 45390240

約数和(自身を除く): 25942336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 79, 98, 112, 157, 158, 196, 224, 314, 316, 392, 553, 628, 632, 784, 1099, 1106, 1256, 1264, 1568, 2198, 2212, 2512, 2528, 3871, 4396, 4424, 5024, 7693, 7742, 8792, 8848, 12403, 15386, 15484, 17584, 17696, 24806, 30772, 30968, 35168, 49612, 61544, 61936, 86821, 99224, 123088, 123872, 173642, 198448, 246176, 347284, 396896, 607747, 694568, 1215494, 1389136, 2430988, 2778272, 4861976, 9723952, 19447904]

約数ペア:

[(1, 19447904), (2, 9723952), (4, 4861976), (7, 2778272), (8, 2430988), (14, 1389136), (16, 1215494), (28, 694568), (32, 607747), (49, 396896), (56, 347284), (79, 246176), (98, 198448), (112, 173642), (157, 123872), (158, 123088), (196, 99224), (224, 86821), (314, 61936), (316, 61544), (392, 49612), (553, 35168), (628, 30968), (632, 30772), (784, 24806), (1099, 17696), (1106, 17584), (1256, 15484), (1264, 15386), (1568, 12403), (2198, 8848), (2212, 8792), (2512, 7742), (2528, 7693), (3871, 5024), (4396, 4424)]