42642340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 96914160

約数和(自身を除く): 54271820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 401, 409, 802, 818, 1604, 1636, 2005, 2045, 4010, 4090, 5213, 5317, 8020, 8180, 10426, 10634, 20852, 21268, 26065, 26585, 52130, 53170, 104260, 106340, 164009, 328018, 656036, 820045, 1640090, 2132117, 3280180, 4264234, 8528468, 10660585, 21321170, 42642340]

約数ペア:

[(1, 42642340), (2, 21321170), (4, 10660585), (5, 8528468), (10, 4264234), (13, 3280180), (20, 2132117), (26, 1640090), (52, 820045), (65, 656036), (130, 328018), (260, 164009), (401, 106340), (409, 104260), (802, 53170), (818, 52130), (1604, 26585), (1636, 26065), (2005, 21268), (2045, 20852), (4010, 10634), (4090, 10426), (5213, 8180), (5317, 8020)]