20154112

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 46578672

約数和(自身を除く): 26424560

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 256, 272, 352, 374, 421, 544, 704, 748, 842, 1088, 1408, 1496, 1684, 2176, 2816, 2992, 3368, 4352, 4631, 5984, 6736, 7157, 9262, 11968, 13472, 14314, 18524, 23936, 26944, 28628, 37048, 47872, 53888, 57256, 74096, 78727, 107776, 114512, 148192, 157454, 229024, 296384, 314908, 458048, 592768, 629816, 916096, 1185536, 1259632, 1832192, 2519264, 5038528, 10077056, 20154112]

約数ペア:

[(1, 20154112), (2, 10077056), (4, 5038528), (8, 2519264), (11, 1832192), (16, 1259632), (17, 1185536), (22, 916096), (32, 629816), (34, 592768), (44, 458048), (64, 314908), (68, 296384), (88, 229024), (128, 157454), (136, 148192), (176, 114512), (187, 107776), (256, 78727), (272, 74096), (352, 57256), (374, 53888), (421, 47872), (544, 37048), (704, 28628), (748, 26944), (842, 23936), (1088, 18524), (1408, 14314), (1496, 13472), (1684, 11968), (2176, 9262), (2816, 7157), (2992, 6736), (3368, 5984), (4352, 4631)]