421844180

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{1277}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 901756800

約数和(自身を除く): 479912620

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 199, 332, 398, 415, 796, 830, 995, 1277, 1660, 1990, 2554, 3980, 5108, 6385, 12770, 16517, 25540, 33034, 66068, 82585, 105991, 165170, 211982, 254123, 330340, 423964, 508246, 529955, 1016492, 1059910, 1270615, 2119820, 2541230, 5082460, 21092209, 42184418, 84368836, 105461045, 210922090, 421844180]

約数ペア:

[(1, 421844180), (2, 210922090), (4, 105461045), (5, 84368836), (10, 42184418), (20, 21092209), (83, 5082460), (166, 2541230), (199, 2119820), (332, 1270615), (398, 1059910), (415, 1016492), (796, 529955), (830, 508246), (995, 423964), (1277, 330340), (1660, 254123), (1990, 211982), (2554, 165170), (3980, 105991), (5108, 82585), (6385, 66068), (12770, 33034), (16517, 25540)]