987171845

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 1382161536

約数和(自身を除く): 394989691

約数列:

[1, 5, 11, 23, 55, 61, 115, 121, 253, 305, 605, 671, 1163, 1265, 1403, 2783, 3355, 5815, 7015, 7381, 12793, 13915, 15433, 26749, 36905, 63965, 70943, 77165, 133745, 140723, 169763, 294239, 354715, 703615, 780373, 848815, 1471195, 1631689, 3236629, 3901865, 8158445, 8584103, 16183145, 17948579, 42920515, 89742895, 197434369, 987171845]

約数ペア:

[(1, 987171845), (5, 197434369), (11, 89742895), (23, 42920515), (55, 17948579), (61, 16183145), (115, 8584103), (121, 8158445), (253, 3901865), (305, 3236629), (605, 1631689), (671, 1471195), (1163, 848815), (1265, 780373), (1403, 703615), (2783, 354715), (3355, 294239), (5815, 169763), (7015, 140723), (7381, 133745), (12793, 77165), (13915, 70943), (15433, 63965), (26749, 36905)]