40780220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2341}}^1$

素因数の和:2430

約数の個数: 48

約数和(自身を含む): 93642528

約数和(自身を除く): 52862308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 2341, 3484, 4355, 4682, 8710, 9364, 11705, 17420, 23410, 30433, 46820, 60866, 121732, 152165, 156847, 304330, 313694, 608660, 627388, 784235, 1568470, 2039011, 3136940, 4078022, 8156044, 10195055, 20390110, 40780220]

約数ペア:

[(1, 40780220), (2, 20390110), (4, 10195055), (5, 8156044), (10, 4078022), (13, 3136940), (20, 2039011), (26, 1568470), (52, 784235), (65, 627388), (67, 608660), (130, 313694), (134, 304330), (260, 156847), (268, 152165), (335, 121732), (670, 60866), (871, 46820), (1340, 30433), (1742, 23410), (2341, 17420), (3484, 11705), (4355, 9364), (4682, 8710)]