18338702980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{684791}}^1$

素因数の和:684916

約数の個数: 48

約数和(自身を含む): 41876400384

約数和(自身を除く): 23537697404

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, 26780, 684791, 1369582, 2739164, 3423955, 6847910, 8902283, 13695820, 17804566, 35609132, 44511415, 70533473, 89022830, 141066946, 178045660, 282133892, 352667365, 705334730, 916935149, 1410669460, 1833870298, 3667740596, 4584675745, 9169351490, 18338702980]

約数ペア:

[(1, 18338702980), (2, 9169351490), (4, 4584675745), (5, 3667740596), (10, 1833870298), (13, 1410669460), (20, 916935149), (26, 705334730), (52, 352667365), (65, 282133892), (103, 178045660), (130, 141066946), (206, 89022830), (260, 70533473), (412, 44511415), (515, 35609132), (1030, 17804566), (1339, 13695820), (2060, 8902283), (2678, 6847910), (5356, 3423955), (6695, 2739164), (13390, 1369582), (26780, 684791)]