419990740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{15683}}^1$

素因数の和:15808

約数の個数: 48

約数和(自身を含む): 959107968

約数和(自身を除く): 539117228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1339, 2060, 2678, 5356, 6695, 13390, 15683, 26780, 31366, 62732, 78415, 156830, 203879, 313660, 407758, 815516, 1019395, 1615349, 2038790, 3230698, 4077580, 6461396, 8076745, 16153490, 20999537, 32306980, 41999074, 83998148, 104997685, 209995370, 419990740]

約数ペア:

[(1, 419990740), (2, 209995370), (4, 104997685), (5, 83998148), (10, 41999074), (13, 32306980), (20, 20999537), (26, 16153490), (52, 8076745), (65, 6461396), (103, 4077580), (130, 3230698), (206, 2038790), (260, 1615349), (412, 1019395), (515, 815516), (1030, 407758), (1339, 313660), (2060, 203879), (2678, 156830), (5356, 78415), (6695, 62732), (13390, 31366), (15683, 26780)]