28517195

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 43086528

約数和(自身を除く): 14569333

約数列:

[1, 5, 7, 19, 35, 37, 61, 95, 133, 185, 259, 305, 361, 427, 665, 703, 1159, 1295, 1805, 2135, 2257, 2527, 3515, 4921, 5795, 8113, 11285, 12635, 13357, 15799, 22021, 24605, 40565, 42883, 66785, 78995, 93499, 110105, 154147, 214415, 300181, 467495, 770735, 814777, 1500905, 4073885, 5703439, 28517195]

約数ペア:

[(1, 28517195), (5, 5703439), (7, 4073885), (19, 1500905), (35, 814777), (37, 770735), (61, 467495), (95, 300181), (133, 214415), (185, 154147), (259, 110105), (305, 93499), (361, 78995), (427, 66785), (665, 42883), (703, 40565), (1159, 24605), (1295, 22021), (1805, 15799), (2135, 13357), (2257, 12635), (2527, 11285), (3515, 8113), (4921, 5795)]