81878528

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:467

約数の個数: 80

約数和(自身を含む): 181193760

約数和(自身を除く): 99315232

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 128, 136, 184, 256, 272, 368, 391, 409, 512, 544, 736, 782, 818, 1088, 1472, 1564, 1636, 2176, 2944, 3128, 3272, 4352, 5888, 6256, 6544, 6953, 8704, 9407, 11776, 12512, 13088, 13906, 18814, 25024, 26176, 27812, 37628, 50048, 52352, 55624, 75256, 100096, 104704, 111248, 150512, 159919, 200192, 209408, 222496, 301024, 319838, 444992, 602048, 639676, 889984, 1204096, 1279352, 1779968, 2408192, 2558704, 3559936, 4816384, 5117408, 10234816, 20469632, 40939264, 81878528]

約数ペア:

[(1, 81878528), (2, 40939264), (4, 20469632), (8, 10234816), (16, 5117408), (17, 4816384), (23, 3559936), (32, 2558704), (34, 2408192), (46, 1779968), (64, 1279352), (68, 1204096), (92, 889984), (128, 639676), (136, 602048), (184, 444992), (256, 319838), (272, 301024), (368, 222496), (391, 209408), (409, 200192), (512, 159919), (544, 150512), (736, 111248), (782, 104704), (818, 100096), (1088, 75256), (1472, 55624), (1564, 52352), (1636, 50048), (2176, 37628), (2944, 27812), (3128, 26176), (3272, 25024), (4352, 18814), (5888, 13906), (6256, 13088), (6544, 12512), (6953, 11776), (8704, 9407)]