28574518

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 27412682

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 71, 89, 119, 133, 142, 178, 238, 266, 323, 497, 623, 646, 994, 1207, 1246, 1349, 1513, 1691, 2261, 2414, 2698, 3026, 3382, 4522, 6319, 8449, 9443, 10591, 11837, 12638, 16898, 18886, 21182, 22933, 23674, 28747, 44233, 45866, 57494, 88466, 107423, 120061, 160531, 201229, 214846, 240122, 321062, 402458, 751961, 840427, 1503922, 1680854, 2041037, 4082074, 14287259, 28574518]

約数ペア:

[(1, 28574518), (2, 14287259), (7, 4082074), (14, 2041037), (17, 1680854), (19, 1503922), (34, 840427), (38, 751961), (71, 402458), (89, 321062), (119, 240122), (133, 214846), (142, 201229), (178, 160531), (238, 120061), (266, 107423), (323, 88466), (497, 57494), (623, 45866), (646, 44233), (994, 28747), (1207, 23674), (1246, 22933), (1349, 21182), (1513, 18886), (1691, 16898), (2261, 12638), (2414, 11837), (2698, 10591), (3026, 9443), (3382, 8449), (4522, 6319)]