18538260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23767}}^1$

素因数の和:23792

約数の個数: 48

約数和(自身を含む): 55902336

約数和(自身を除く): 37364076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23767, 47534, 71301, 95068, 118835, 142602, 237670, 285204, 308971, 356505, 475340, 617942, 713010, 926913, 1235884, 1426020, 1544855, 1853826, 3089710, 3707652, 4634565, 6179420, 9269130, 18538260]

約数ペア:

[(1, 18538260), (2, 9269130), (3, 6179420), (4, 4634565), (5, 3707652), (6, 3089710), (10, 1853826), (12, 1544855), (13, 1426020), (15, 1235884), (20, 926913), (26, 713010), (30, 617942), (39, 475340), (52, 356505), (60, 308971), (65, 285204), (78, 237670), (130, 142602), (156, 118835), (195, 95068), (260, 71301), (390, 47534), (780, 23767)]