263205680

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{17047}}^1$

素因数の和:17253

約数の個数: 40

約数和(自身を含む): 615160032

約数和(自身を除く): 351954352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 17047, 34094, 68188, 85235, 136376, 170470, 272752, 340940, 681880, 1363760, 3290071, 6580142, 13160284, 16450355, 26320568, 32900710, 52641136, 65801420, 131602840, 263205680]

約数ペア:

[(1, 263205680), (2, 131602840), (4, 65801420), (5, 52641136), (8, 32900710), (10, 26320568), (16, 16450355), (20, 13160284), (40, 6580142), (80, 3290071), (193, 1363760), (386, 681880), (772, 340940), (965, 272752), (1544, 170470), (1930, 136376), (3088, 85235), (3860, 68188), (7720, 34094), (15440, 17047)]