19890304

素因数分解:

$2^7\times 7^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 46022400

約数和(自身を除く): 26132096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 79, 112, 128, 158, 224, 281, 316, 448, 553, 562, 632, 896, 1106, 1124, 1264, 1967, 2212, 2248, 2528, 3934, 4424, 4496, 5056, 7868, 8848, 8992, 10112, 15736, 17696, 17984, 22199, 31472, 35392, 35968, 44398, 62944, 70784, 88796, 125888, 155393, 177592, 251776, 310786, 355184, 621572, 710368, 1243144, 1420736, 2486288, 2841472, 4972576, 9945152, 19890304]

約数ペア:

[(1, 19890304), (2, 9945152), (4, 4972576), (7, 2841472), (8, 2486288), (14, 1420736), (16, 1243144), (28, 710368), (32, 621572), (56, 355184), (64, 310786), (79, 251776), (112, 177592), (128, 155393), (158, 125888), (224, 88796), (281, 70784), (316, 62944), (448, 44398), (553, 35968), (562, 35392), (632, 31472), (896, 22199), (1106, 17984), (1124, 17696), (1264, 15736), (1967, 10112), (2212, 8992), (2248, 8848), (2528, 7868), (3934, 5056), (4424, 4496)]