289578905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1350

約数の個数: 64

約数和(自身を含む): 471121920

約数和(自身を除く): 181543015

約数列:

[1, 5, 7, 11, 19, 31, 35, 55, 77, 95, 133, 155, 209, 217, 341, 385, 589, 665, 1045, 1085, 1277, 1463, 1705, 2387, 2945, 4123, 6385, 6479, 7315, 8939, 11935, 14047, 20615, 24263, 32395, 39587, 44695, 45353, 70235, 98329, 121315, 169841, 197935, 226765, 266893, 277109, 435457, 491645, 752153, 849205, 1334465, 1385545, 1868251, 2177285, 3048199, 3760765, 5265071, 8273683, 9341255, 15240995, 26325355, 41368415, 57915781, 289578905]

約数ペア:

[(1, 289578905), (5, 57915781), (7, 41368415), (11, 26325355), (19, 15240995), (31, 9341255), (35, 8273683), (55, 5265071), (77, 3760765), (95, 3048199), (133, 2177285), (155, 1868251), (209, 1385545), (217, 1334465), (341, 849205), (385, 752153), (589, 491645), (665, 435457), (1045, 277109), (1085, 266893), (1277, 226765), (1463, 197935), (1705, 169841), (2387, 121315), (2945, 98329), (4123, 70235), (6385, 45353), (6479, 44695), (7315, 39587), (8939, 32395), (11935, 24263), (14047, 20615)]