290400748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 567026208

約数和(自身を除く): 276625460

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 257, 421, 514, 671, 842, 1028, 1342, 1684, 2684, 2827, 4631, 5654, 9262, 11308, 15677, 18524, 25681, 31354, 51362, 62708, 102724, 108197, 172447, 216394, 282491, 344894, 432788, 564982, 689788, 1129964, 1190167, 2380334, 4760668, 6600017, 13200034, 26400068, 72600187, 145200374, 290400748]

約数ペア:

[(1, 290400748), (2, 145200374), (4, 72600187), (11, 26400068), (22, 13200034), (44, 6600017), (61, 4760668), (122, 2380334), (244, 1190167), (257, 1129964), (421, 689788), (514, 564982), (671, 432788), (842, 344894), (1028, 282491), (1342, 216394), (1684, 172447), (2684, 108197), (2827, 102724), (4631, 62708), (5654, 51362), (9262, 31354), (11308, 25681), (15677, 18524)]