18415930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 38065464

約数和(自身を除く): 19649534

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 641, 845, 1105, 1282, 1690, 2210, 2873, 3205, 5746, 6410, 8333, 10897, 14365, 16666, 21794, 28730, 41665, 54485, 83330, 108329, 108970, 141661, 216658, 283322, 541645, 708305, 1083290, 1416610, 1841593, 3683186, 9207965, 18415930]

約数ペア:

[(1, 18415930), (2, 9207965), (5, 3683186), (10, 1841593), (13, 1416610), (17, 1083290), (26, 708305), (34, 541645), (65, 283322), (85, 216658), (130, 141661), (169, 108970), (170, 108329), (221, 83330), (338, 54485), (442, 41665), (641, 28730), (845, 21794), (1105, 16666), (1282, 14365), (1690, 10897), (2210, 8333), (2873, 6410), (3205, 5746)]