20105356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 39184992

約数和(自身を除く): 19079636

約数列:

[1, 2, 4, 17, 34, 37, 61, 68, 74, 122, 131, 148, 244, 262, 524, 629, 1037, 1258, 2074, 2227, 2257, 2516, 4148, 4454, 4514, 4847, 7991, 8908, 9028, 9694, 15982, 19388, 31964, 38369, 76738, 82399, 135847, 153476, 164798, 271694, 295667, 329596, 543388, 591334, 1182668, 5026339, 10052678, 20105356]

約数ペア:

[(1, 20105356), (2, 10052678), (4, 5026339), (17, 1182668), (34, 591334), (37, 543388), (61, 329596), (68, 295667), (74, 271694), (122, 164798), (131, 153476), (148, 135847), (244, 82399), (262, 76738), (524, 38369), (629, 31964), (1037, 19388), (1258, 15982), (2074, 9694), (2227, 9028), (2257, 8908), (2516, 7991), (4148, 4847), (4454, 4514)]