87978275

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6529}}^1$

素因数の和:6564

約数の個数: 36

約数和(自身を含む): 138462120

約数和(自身を除く): 50483845

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 1225, 1925, 2695, 6529, 13475, 32645, 45703, 71819, 163225, 228515, 319921, 359095, 502733, 1142575, 1599605, 1795475, 2513665, 3519131, 7998025, 12568325, 17595655, 87978275]

約数ペア:

[(1, 87978275), (5, 17595655), (7, 12568325), (11, 7998025), (25, 3519131), (35, 2513665), (49, 1795475), (55, 1599605), (77, 1142575), (175, 502733), (245, 359095), (275, 319921), (385, 228515), (539, 163225), (1225, 71819), (1925, 45703), (2695, 32645), (6529, 13475)]