42.0000000

素因数分解:

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

素因数の和:129

約数の個数: 54

約数和(自身を含む): 12823398

約数和(自身を除く): 7210498

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 41, 50, 74, 82, 100, 148, 164, 185, 205, 370, 410, 740, 820, 925, 1025, 1369, 1517, 1850, 2050, 2738, 3034, 3700, 4100, 5476, 6068, 6845, 7585, 13690, 15170, 27380, 30340, 34225, 37925, 56129, 68450, 75850, 112258, 136900, 151700, 224516, 280645, 561290, 1122580, 1403225, 2806450, 5612900]

約数ペア:

[(1, 5612900), (2, 2806450), (4, 1403225), (5, 1122580), (10, 561290), (20, 280645), (25, 224516), (37, 151700), (41, 136900), (50, 112258), (74, 75850), (82, 68450), (100, 56129), (148, 37925), (164, 34225), (185, 30340), (205, 27380), (370, 15170), (410, 13690), (740, 7585), (820, 6845), (925, 6068), (1025, 5476), (1369, 4100), (1517, 3700), (1850, 3034), (2050, 2738)]