157979185

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 239648976

約数和(自身を除く): 81669791

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 193, 245, 257, 455, 637, 965, 1285, 1351, 1799, 2509, 3185, 3341, 6755, 8995, 9457, 12545, 12593, 16705, 17563, 23387, 47285, 49601, 62965, 87815, 116935, 122941, 163709, 248005, 347207, 614705, 644813, 818545, 1736035, 2430449, 3224065, 4513691, 12152245, 22568455, 31595837, 157979185]

約数ペア:

[(1, 157979185), (5, 31595837), (7, 22568455), (13, 12152245), (35, 4513691), (49, 3224065), (65, 2430449), (91, 1736035), (193, 818545), (245, 644813), (257, 614705), (455, 347207), (637, 248005), (965, 163709), (1285, 122941), (1351, 116935), (1799, 87815), (2509, 62965), (3185, 49601), (3341, 47285), (6755, 23387), (8995, 17563), (9457, 16705), (12545, 12593)]