20654736

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 56889216

約数和(自身を除く): 36234480

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 53, 69, 92, 106, 138, 159, 184, 212, 276, 318, 353, 368, 424, 552, 636, 706, 848, 1059, 1104, 1219, 1272, 1412, 2118, 2438, 2544, 2824, 3657, 4236, 4876, 5648, 7314, 8119, 8472, 9752, 14628, 16238, 16944, 18709, 19504, 24357, 29256, 32476, 37418, 48714, 56127, 58512, 64952, 74836, 97428, 112254, 129904, 149672, 194856, 224508, 299344, 389712, 430307, 449016, 860614, 898032, 1290921, 1721228, 2581842, 3442456, 5163684, 6884912, 10327368, 20654736]

約数ペア:

[(1, 20654736), (2, 10327368), (3, 6884912), (4, 5163684), (6, 3442456), (8, 2581842), (12, 1721228), (16, 1290921), (23, 898032), (24, 860614), (46, 449016), (48, 430307), (53, 389712), (69, 299344), (92, 224508), (106, 194856), (138, 149672), (159, 129904), (184, 112254), (212, 97428), (276, 74836), (318, 64952), (353, 58512), (368, 56127), (424, 48714), (552, 37418), (636, 32476), (706, 29256), (848, 24357), (1059, 19504), (1104, 18709), (1219, 16944), (1272, 16238), (1412, 14628), (2118, 9752), (2438, 8472), (2544, 8119), (2824, 7314), (3657, 5648), (4236, 4876)]