77916820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 170529408

約数和(自身を除く): 92612588

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 710, 740, 1420, 1483, 2627, 2966, 5254, 5932, 7415, 10508, 13135, 14830, 26270, 29660, 52540, 54871, 105293, 109742, 210586, 219484, 274355, 421172, 526465, 548710, 1052930, 1097420, 2105860, 3895841, 7791682, 15583364, 19479205, 38958410, 77916820]

約数ペア:

[(1, 77916820), (2, 38958410), (4, 19479205), (5, 15583364), (10, 7791682), (20, 3895841), (37, 2105860), (71, 1097420), (74, 1052930), (142, 548710), (148, 526465), (185, 421172), (284, 274355), (355, 219484), (370, 210586), (710, 109742), (740, 105293), (1420, 54871), (1483, 52540), (2627, 29660), (2966, 26270), (5254, 14830), (5932, 13135), (7415, 10508)]