289710170

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{739}}^1$

素因数の和:1142

約数の個数: 32

約数和(自身を含む): 527472000

約数和(自身を除く): 237761830

約数列:

[1, 2, 5, 10, 197, 199, 394, 398, 739, 985, 995, 1478, 1970, 1990, 3695, 7390, 39203, 78406, 145583, 147061, 196015, 291166, 294122, 392030, 727915, 735305, 1455830, 1470610, 28971017, 57942034, 144855085, 289710170]

約数ペア:

[(1, 289710170), (2, 144855085), (5, 57942034), (10, 28971017), (197, 1470610), (199, 1455830), (394, 735305), (398, 727915), (739, 392030), (985, 294122), (995, 291166), (1478, 196015), (1970, 147061), (1990, 145583), (3695, 78406), (7390, 39203)]