77107840

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 185533920

約数和(自身を除く): 108426080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 422, 571, 640, 844, 1055, 1142, 1688, 2110, 2284, 2855, 3376, 4220, 4568, 5710, 6752, 8440, 9136, 11420, 13504, 16880, 18272, 22840, 27008, 33760, 36544, 45680, 67520, 73088, 91360, 120481, 135040, 182720, 240962, 365440, 481924, 602405, 963848, 1204810, 1927696, 2409620, 3855392, 4819240, 7710784, 9638480, 15421568, 19276960, 38553920, 77107840]

約数ペア:

[(1, 77107840), (2, 38553920), (4, 19276960), (5, 15421568), (8, 9638480), (10, 7710784), (16, 4819240), (20, 3855392), (32, 2409620), (40, 1927696), (64, 1204810), (80, 963848), (128, 602405), (160, 481924), (211, 365440), (320, 240962), (422, 182720), (571, 135040), (640, 120481), (844, 91360), (1055, 73088), (1142, 67520), (1688, 45680), (2110, 36544), (2284, 33760), (2855, 27008), (3376, 22840), (4220, 18272), (4568, 16880), (5710, 13504), (6752, 11420), (8440, 9136)]