20619776

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:161

約数の個数: 80

約数和(自身を含む): 45961344

約数和(自身を除く): 25341568

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 103, 128, 136, 184, 206, 256, 272, 368, 391, 412, 512, 544, 736, 782, 824, 1088, 1472, 1564, 1648, 1751, 2176, 2369, 2944, 3128, 3296, 3502, 4352, 4738, 5888, 6256, 6592, 7004, 8704, 9476, 11776, 12512, 13184, 14008, 18952, 25024, 26368, 28016, 37904, 40273, 50048, 52736, 56032, 75808, 80546, 100096, 112064, 151616, 161092, 200192, 224128, 303232, 322184, 448256, 606464, 644368, 896512, 1212928, 1288736, 2577472, 5154944, 10309888, 20619776]

約数ペア:

[(1, 20619776), (2, 10309888), (4, 5154944), (8, 2577472), (16, 1288736), (17, 1212928), (23, 896512), (32, 644368), (34, 606464), (46, 448256), (64, 322184), (68, 303232), (92, 224128), (103, 200192), (128, 161092), (136, 151616), (184, 112064), (206, 100096), (256, 80546), (272, 75808), (368, 56032), (391, 52736), (412, 50048), (512, 40273), (544, 37904), (736, 28016), (782, 26368), (824, 25024), (1088, 18952), (1472, 14008), (1564, 13184), (1648, 12512), (1751, 11776), (2176, 9476), (2369, 8704), (2944, 7004), (3128, 6592), (3296, 6256), (3502, 5888), (4352, 4738)]