20519312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 46818432

約数和(自身を除く): 26299120

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 37, 44, 46, 74, 88, 92, 137, 148, 176, 184, 253, 274, 296, 368, 407, 506, 548, 592, 814, 851, 1012, 1096, 1507, 1628, 1702, 2024, 2192, 3014, 3151, 3256, 3404, 4048, 5069, 6028, 6302, 6512, 6808, 9361, 10138, 12056, 12604, 13616, 18722, 20276, 24112, 25208, 34661, 37444, 40552, 50416, 55759, 69322, 74888, 81104, 111518, 116587, 138644, 149776, 223036, 233174, 277288, 446072, 466348, 554576, 892144, 932696, 1282457, 1865392, 2564914, 5129828, 10259656, 20519312]

約数ペア:

[(1, 20519312), (2, 10259656), (4, 5129828), (8, 2564914), (11, 1865392), (16, 1282457), (22, 932696), (23, 892144), (37, 554576), (44, 466348), (46, 446072), (74, 277288), (88, 233174), (92, 223036), (137, 149776), (148, 138644), (176, 116587), (184, 111518), (253, 81104), (274, 74888), (296, 69322), (368, 55759), (407, 50416), (506, 40552), (548, 37444), (592, 34661), (814, 25208), (851, 24112), (1012, 20276), (1096, 18722), (1507, 13616), (1628, 12604), (1702, 12056), (2024, 10138), (2192, 9361), (3014, 6808), (3151, 6512), (3256, 6302), (3404, 6028), (4048, 5069)]