163955440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{883}}^1$

素因数の和:1118

約数の個数: 80

約数和(自身を含む): 418294656

約数和(自身を除く): 254339216

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 211, 220, 422, 440, 844, 880, 883, 1055, 1688, 1766, 2110, 2321, 3376, 3532, 4220, 4415, 4642, 7064, 8440, 8830, 9284, 9713, 11605, 14128, 16880, 17660, 18568, 19426, 23210, 35320, 37136, 38852, 46420, 48565, 70640, 77704, 92840, 97130, 155408, 185680, 186313, 194260, 372626, 388520, 745252, 777040, 931565, 1490504, 1863130, 2049443, 2981008, 3726260, 4098886, 7452520, 8197772, 10247215, 14905040, 16395544, 20494430, 32791088, 40988860, 81977720, 163955440]

約数ペア:

[(1, 163955440), (2, 81977720), (4, 40988860), (5, 32791088), (8, 20494430), (10, 16395544), (11, 14905040), (16, 10247215), (20, 8197772), (22, 7452520), (40, 4098886), (44, 3726260), (55, 2981008), (80, 2049443), (88, 1863130), (110, 1490504), (176, 931565), (211, 777040), (220, 745252), (422, 388520), (440, 372626), (844, 194260), (880, 186313), (883, 185680), (1055, 155408), (1688, 97130), (1766, 92840), (2110, 77704), (2321, 70640), (3376, 48565), (3532, 46420), (4220, 38852), (4415, 37136), (4642, 35320), (7064, 23210), (8440, 19426), (8830, 18568), (9284, 17660), (9713, 16880), (11605, 14128)]