26638520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 63201600

約数和(自身を除く): 36563080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 296, 328, 370, 410, 439, 740, 820, 878, 1480, 1517, 1640, 1756, 2195, 3034, 3512, 4390, 6068, 7585, 8780, 12136, 15170, 16243, 17560, 17999, 30340, 32486, 35998, 60680, 64972, 71996, 81215, 89995, 129944, 143992, 162430, 179990, 324860, 359980, 649720, 665963, 719960, 1331926, 2663852, 3329815, 5327704, 6659630, 13319260, 26638520]

約数ペア:

[(1, 26638520), (2, 13319260), (4, 6659630), (5, 5327704), (8, 3329815), (10, 2663852), (20, 1331926), (37, 719960), (40, 665963), (41, 649720), (74, 359980), (82, 324860), (148, 179990), (164, 162430), (185, 143992), (205, 129944), (296, 89995), (328, 81215), (370, 71996), (410, 64972), (439, 60680), (740, 35998), (820, 32486), (878, 30340), (1480, 17999), (1517, 17560), (1640, 16243), (1756, 15170), (2195, 12136), (3034, 8780), (3512, 7585), (4390, 6068)]