81807808

素因数分解:

$2^6\times {\mathrm{17}}^2\times {\mathrm{4423}}^1$

素因数の和:4469

約数の個数: 42

約数和(自身を含む): 172487336

約数和(自身を除く): 90679528

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 289, 544, 578, 1088, 1156, 2312, 4423, 4624, 8846, 9248, 17692, 18496, 35384, 70768, 75191, 141536, 150382, 283072, 300764, 601528, 1203056, 1278247, 2406112, 2556494, 4812224, 5112988, 10225976, 20451952, 40903904, 81807808]

約数ペア:

[(1, 81807808), (2, 40903904), (4, 20451952), (8, 10225976), (16, 5112988), (17, 4812224), (32, 2556494), (34, 2406112), (64, 1278247), (68, 1203056), (136, 601528), (272, 300764), (289, 283072), (544, 150382), (578, 141536), (1088, 75191), (1156, 70768), (2312, 35384), (4423, 18496), (4624, 17692), (8846, 9248)]